Cosd matlab

Let us consider an example to understand the application of cos2x formula. We will determine the value of cos 120° using the cos2x identity. We know that cos2x = cos 2 x - sin 2 x and sin 60° = √3/2, cos 60° = 1/2. Since 2x = 120°, x = 60°. Therefore, we have. cos 120° = cos 2 60° - sin 2 60°. = (1/2) 2 - (√3/2) 2.

Magnitude Response of a Highpass Filter. Design a 3rd-order highpass Butterworth filter having a normalized 3-dB frequency of 0. 5 π rad/sample. Compute its frequency response. Express the magnitude response in decibels and plot it. [b,a] = butter (3,0.5, 'high' ); [h,w] = freqz (b,a); dB = mag2db (abs (h)); plot (w/pi,dB) xlabel ( '\omega ...补充说明：官方参考三角学 - MATLAB & Simulink - MathWorks 中国 三角函数分别为：正弦、余弦、正切、余切、正割、余割；反三角函数分别为：反正弦、反余弦、反正切、反余切、反正割、反余割；双曲函数分别为： 双曲正弦 、 双曲余弦 、双曲正切、双曲余切、双曲正割、双曲余割。Help and Support. MATLAB ® offers several options for getting help on MathWorks ® products. You can access abbreviated function help text in the Command Window, or search the documentation for in-depth, comprehensive help topics and examples. For information on specific issues not addressed in the documentation, contact MathWorks Technical ...Apr 9, 2023 · I mentioned earlier that there were a lot of places that you define anonymous functions but then do not pass appropriate arguments to them. To help track that down, I renamed all of your anonymous functions to end with '_fh' to make it easier to read the expressions to make sure that the anonymous functions were being invoked with appropriate parameters each time. Stack Overflow | The World's Largest Online Community for Developers10 Mei 2008 ... MATLAB中文论坛MATLAB 基础讨论板块发表的帖子：函数sind/cosd求助。今天在学习Matlab时发现有一段源码使用了sind、cosd函数，但是我在matlab自带库中 ...

結果進入虛數的世界，因為得到虛根。所以MATLAB在處理數值時，開方根並不限於正值。 指數方面，因為基底之不同，數學上分為以e 與以10為底；對應於指令方面，分別為log(x)與log10(x)之型式。與對數相應，以e 為底者稱為自然對數，用exp(x)表示。例如e¹其值為：Dec 13, 2022 · How to put 3d vector if i know initial point coordinates and two angles. I tries this one, but still could not understand where is my phi and theta on 3d according to matlab plotting. Theme. Copy. x0=1.5; %initial x position. y0=1.5; %initial y position. z0=3.0; r = sqrt (x0^2 + y0^2 + z0^2); x1 = r * sin (Phi0) * cos (Theta0); This set of MATLAB Multiple Choice Questions & Answers (MCQs) focuses on "Functions". 1. What is the name of a primary function? a) Name of M-file b) Name of Script File ... But sind(45) will return 1, this is a pre-defined function in MATLAB. The same goes for cosd(45) and tand(45).Variables in MATLAB ® of data type (class) int32 are stored as 4-byte (32-bit) signed integers. For example: y = int32 (10); whos y. Name Size Bytes Class Attributes y 1x1 4 int32. For more information on integer types, see Integers.Sine of 180 Degrees Compared to Sine of π Radians. sind (180) ans = 0. sin (pi) ans = 1.2246e-16.cosd ( MATLAB funktsioonid ) Y = cosd ( X ) on X elementide koosinus kraadides Paaritute täisarvude n korral on cosd(n*90) täpselt null, samas kui cos(n*pi/2) peegeldab pi ujukoma väärtuse täpsust. Kas Matlabis on COS radiaanides? Y = acos( X ) tagastab X elementide pöördkoosinuse (cos-1) radiaanides. Funktsioon aktsepteerib nii ...

I'm writing MATLAB code that requires implementing some mathematical equations. The equation that I'm trying to write into a Matlab code is: Result = X cosTheta - Y sin Theta ... Or use cosd and sind, which are provided for convenience (but you should get into the habit of using radians). – horchler. Oct 29, 2014 at 23:25. Add a comment |Apr 30, 2013 · Obviously, MATLAB complains that cosd doesn't accept symbolic variables. If you absolutely have to work with symbolic variables and degrees, use sin and cos instead, and convert the degrees to radians manually. For example, instead of F1 = cosd (a3) you can write: F1 = cos (a3 * pi / 180); Share. Improve this answer. Description example Y = acosd (X) returns the inverse cosine (cos -1) of the elements of X in degrees. The function accepts both real and complex inputs. For real values of X in the interval [-1, 1], acosd (X) returns values in the interval [0, 180].acosd([2 3]) returns two complex angles, which are then passed to the cosd function. cosd returns the original values, 2 and 3. Input Arguments. ... Thread-Based Environment Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.746 views (last 30 days) Show older comments. Mohsin Shah on 29 May 2011. Commented: Steven Lord on 29 Jun 2022. Accepted Answer: Paulo Silva. Hello, i calculated the value of sin (45) in Matlab, the result was sin (45)=0.8509 and for cosin i got cos (45)= 0.5253. From general mathematics we know that sin (45)=cos (45) then why Matlab is giving ...Description. Calculates the value of cosine for each element of x in degrees in a manner compatible with GNU Octave/MATLAB. Zero is returned for any "elements where ( x - 90) / 180 is an integer." Source: Eaton.

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When you press the green Run button, MATLAB will run the function without providing any parameters. If you run a function that has a variable (such as x) defined as a parameter, but you run the function without providing a value in that position, then MATLAB will never go hunting around elsewhere looking for an "x" defined somewhere to use as ...Historical Actions. Actions from February 14, 2020, through February 28, 2023. The County of San Diego 2020 COVID-19 Response Plan (Consumer Version) outlined the County's efforts to respond to this global incident, including information on what the public can do, and provides resources and references. The purpose of the Test, Trace, Treat ...Cosine Function for Numeric and Symbolic Arguments. Depending on its arguments, cos returns floating-point or exact symbolic results. Compute the cosine function for these numbers. Because these numbers are not symbolic objects, cos returns floating-point results. A = cos ( [-2, -pi, pi/6, 5*pi/7, 11]) A = -0.4161 -1.0000 0.8660 -0.6235 0.0044. If you are generating code for an FIR filter, see Multiplier Input and Output Pipelining for FIR Filters for information on a related optimization.. Command-Line Alternative: Use the generatehdl function with the property CoeffMultipliers to optimize coefficient multipliers with CSD techniques.Hi I want to fit my data through the equation: but it appears the error: Complex value computed by model function, fitting cannot continue. Try using or tightening upper and lower bounds on coefficients. There are two parameters (a and b) only, the result will not be good: Correlation Coef. (R): 0.843000031198818. Sign in to comment.

Cosine (in degrees) [GNU Octave/MATLAB compatible] Description. Calculates the value of cosine for each element of x in degrees in a manner compatible with GNU Octave/MATLAB. Zero is returned for any 'elements where (x - 90) / 180 is an integer.' Reference: Eaton. Usage cosd(x) ArgumentsThis norm is also called the 2-norm, vector magnitude, or Euclidean length. n = norm (v,p) returns the generalized vector p -norm. n = norm (X) returns the 2-norm or maximum singular value of matrix X , which is approximately max (svd (X)). n = norm (X,p) returns the p -norm of matrix X, where p is 1, 2, or Inf: If p = 1, then n is the maximum ...Matlab 'vectorized' code is not necessarily expressed as vectorized CPU instructions. Consider the following code: A = rand (1000); B = (A (1:2:end,:)+A (2:2:end,:))/2; This code computes mean values for two adjacent matrix rows. It is a 'vectorized' matlab expression. However, since matlab stores matrices column-wise …acosd([2 3]) returns two complex angles, which are then passed to the cosd function. cosd returns the original values, 2 and 3. Input Arguments. ... Thread-Based Environment Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.This set of MATLAB Multiple Choice Questions & Answers (MCQs) focuses on "Functions". 1. What is the name of a primary function? a) Name of M-file b) Name of Script File ... But sind(45) will return 1, this is a pre-defined function in MATLAB. The same goes for cosd(45) and tand(45).The cosd function can calculate on all variables within a table or timetable without indexing to access those variables. All variables must have data types that support the calculation. All variables must have data types that support the calculation.Descripción. Y = acos (X) devuelve el Coseno inverso (cos -1) de los elementos de X en radianes. La función acepta entradas tanto reales como complejas. Para valores reales de X en el intervalo [-1, 1], acos (X) devuelve valores en el intervalo [0, π]. Para valores reales de X fuera del intervalo [-1,1] y para los valores complejos de X ...Move the legend into an open area on the graph so as to not cover up traces. Replace Figure 4 below with your version, including your name in the title. (8 points). Cosine and Sine Functions - J. Swenson o Figure 4: Plot of Cosine and Sine Functions Using MATLAB.

A. Apa itu MATLAB? MATLAB merupakan kependekan dari MATrix LABoratory dikarenakan setiap data pada MATLAB menggunakan dasar matriks. MATLAB adalah bahasa pemrograman tinggi, tertutup, dan case sensitive dalam lingkungan komputasi numerik yang dikembangkan oleh MathWorks. Salah satu kelebihannya yang paling populer adalah kemampuan membuat grafik dengan visualisasi terbaik. MATLAB mempunyai ...

Select a Web Site. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .Stack Overflow | The World's Largest Online Community for DevelopersThis matrix specifies a projective transformation consisting of rotation and tilt. theta = 30; A = [cosd (theta) -sind (theta) 0; ... sind (theta) cosd (theta) 0; ... 0.001 0.001 1]; Create a projtform2d object from the transformation matrix. tform = projtform2d with properties: Dimensionality: 2 A: [3x3 double] Examine the value of the A property. MPSK Simulation (BPSK,QPSK,8PSK) This m-file simulates MPSK (BPSK,QPSK,8PSK)with theoretical and simulated results using Gray coding. Numerical examples of a satellite link design are shown using QPSK and/or 8PSK when the bit rate (Rb)is greater than the channel bandwidth Wc (Band-limited channel).from scipy.optimize import fsolve import math def cosd (x): return math.cos (x * math.pi / 180); def equations (p): time2 = 0.455 # Microphone 1 to Microphone 2 time delay time3 = 0.606 # Microphone 1 to Microphone 3 time delay # gives : r2 = 150. #time2*c; r3 = 200. #time3*c; r4 = 499.1 # Distance from Microphone 2 to Microphone 3 r5 = 1267.9 ...First, MATLAB has a built-in function ELLIPSOID which generates a set of mesh points given the ellipsoid center and the semi-axis lengths. The following creates the matrices x, y, and z for an ellipsoid centered at the origin with semi-axis lengths of 4, 2, and 1 for the x, y, and z directions, respectively: [x, y, z] = ellipsoid (0, 0, 0, 4, 2 ...此 MATLAB 函数 以弧度为单位返回 X 各元素的 反余弦 (cos-1)。该函数同时接受实数和复数输入。 对于 X 在区间 [-1, 1] 内的实数值，acos(X) 返回区间 [0, π] 内的值。 对于 X 在区间 [-1,1] 之外的实数值以及 X 的复数值，acos(X) 返回复数值。Fair enough, thanks for the link. Then how can the replacement be done ? if i have an expression y=sympy.cos(x), y.subs(sympy.cos, sympy.cosd) does not work with the above definition of sympy.cosd (as it's not a sympy function but just a usual lambda function).y.subs(x, pi/180*x) works here, but if the expression in the cos is complicated (like polynomial expression of various parameters) it ...C = cond (A) C = 1.6230e+03. Since the condition number of A is much larger than 1, the matrix is sensitive to the inverse calculation. Calculate the inverse of A, and then make a small change in the second row of A and calculate the inverse again. invA = inv (A) invA = 2×2 -66.0000 28.0000 97.0000 -41.0000.

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Y = asin (X) returns the Inverse Sine (sin -1) of the elements of X in radians. The function accepts both real and complex inputs. For real values of X in the interval [-1, 1], asin (X) returns values in the interval [-π/2, π/2]. For real values of X outside the interval [-1, 1] and for complex values of X, asin (X) returns complex values.Match case Limit results 1 per page. Code Generation from MATLAB ® User's Guide R2011b . Author: rajdeep-singh Post on 20-Jan-2016. 136 viewsYou can generate efficient C/C++ code for a subset of MATLAB ® and toolbox functions that you call from MATLAB code. In generated code, each supported function has the same name,This MATLAB function performs a logical OR of inputs A and B and returns an array or a table containing elements set to either logical 1 (true) or logical 0 (false).Matlab cosd vs cos. I write an equation related to using cosine, sine, tangent but everytime I run mathlab show me a negative result but when I use calculator it is a positive Do My Homework. Clear up mathematic question Solve mathematic questions Provide multiple ways ...Description. Y = atand (X) returns the inverse tangent (tan -1) of the elements of X in degrees. The function accepts both real and complex inputs. For real values of X, atand (X) returns values in the interval [-90, 90]. For complex …Trigonometry. Sine, cosine, and related functions, with results in radians or degrees. The trigonometric functions in MATLAB ® calculate standard trigonometric values in radians …I noticed that MATLAB has a sin () and sind () functions. I learnt that sin () accepts the angle in radians and sind () accepts the angle in degrees. The only difference I know is sind (180) gives 0 but sin (pi) doesn't: >> sin (pi) ans = 1.2246e-016 >> sind (180) ans = 0. What boggles me is whether there is any scenarios or guidelines to ... ….

Matlab is, amongst other things, a programming language. It is written with a C-like structure. Converting certain trivial pieces of Matlab code to Python can be as simple as ditching semicolons and using square brackets "[]" in space of parentheses "()". A couple things to watch out for: Python is zero-indexed whereas Matlab is one ...Thread-Based Environment Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool. This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment. GPU Arrays ...我正试图用matlab从卫星数据中创建一幅真彩色RBG图像，但我不知道怎么做 伪彩色RGB图像很简单，只需为红色、绿色和蓝色使用正确的通道即可制作. RGB (:,:,1)= (ref16)'; %red - reflectance 1.6mic RGB (:,:,2)= (ref06)'; %green - reflectance 600nm RGB (:,:,3)= (ref05)'; %blue - reflectance 500nm ...Starting in R2022b, most Image Processing Toolbox™ functions create and perform geometric transformations using the premultiply convention. Accordingly, the affine2d object is not recommended because it uses the postmultiply convention. Although there are no plans to remove the affine2d object at this time, you can streamline your geometric ...Academics. Taking the age-old tradition of enlightenment through education forward, The IIS University - in its continuous pursuit of excellence - firmly believes that an institution's academic profile determines its worth and value. Therefore, on offer are a wide variety of both conventional and contemporary programmes of study.Matlab mengenal penggunaan sudut dengan satuan derajat dan radian. 1. Satuan Derajat : Perintah untuk menghitung sudut trigonometri dimana sudut x dalam satuan derajat adalah : · sind (x): menghitung nilai sinus x. · cosd (x) : menghitung nilai cosinus x. · tand (x) : menghitung nilai tangen x.{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":".gitignore","path":".gitignore","contentType":"file"},{"name":"README.md","path":"README.md ...Create a digital surface model (DSM) of the point cloud with a grid element resolution of 1.1 meters. gridRes = 1.1; surfaceModel = pc2dem (ptCloud,gridRes, "CornerFillMethod", "max" ); Define the location of the illumination source. Compute the directional gradients of the DSM using the imgradientxy function. A python script to convert matlab files or lines of matlab code to python. This project is in alpha phase. ... (3,4)), or cosd(x), to np.cosd(np.pi/180 x) other misc functions like strcmp, strrep, reshape replaced by their python , etc; As mentioned above, SMOP does a great job to produce safe code.numpy.deg2rad# numpy. deg2rad (x, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True [, signature, extobj]) = <ufunc 'deg2rad'> # Convert angles from degrees to radians. Parameters: x array_like. Angles in degrees. out ndarray, None, or tuple of ndarray and None, optional. A location into which the result is stored. If provided, it must have a shape that the ... Cosd matlab, For at oprette en webservice fik jeg et antal XSD. Der er en sammenhæng mellem dem: et almindeligt skema, der danner en skelet-XML-besked, mens andre tjener til videregivelse af forretningsinformation. Derefter ..., Jul 19, 2022 · For example, instead of F1 = cosd (a3) you can write: cosd does not work with symbolic inputs. How to create a symbolic variable in MATLAB? Create the symbolic variables x and y using syms and sym, respectively. The first command creates a symbolic variable x in the MATLAB workspace with the value x assigned to the variable x. , Find the treasures in MATLAB Central and discover how the community can help you! Start Hunting! Discover Live Editor. Create scripts with code, output, and formatted text in a single executable document. Learn About Live Editor. deci2bin(x,l) MPSK2.m; q(x) Version Published Release Notes;, Cosine of angle, specified as a scalar, vector, matrix, multidimensional array, table, or timetable. The acos operation is element-wise when X is nonscalar. Data Types: single | double | table | timetable. Complex Number Support: Yes., Script Files. Script Files All of the pre-built commands that you use in MATLAB® are script files or functions (plot, mean, std, exp, cosd, …) MATLAB® allows the user to create his/her own customized m-files for specific applications or problems. A script file is simply a collection of executable MATLAB® commands. To create a new script file, click on the New Script icon on the left side ..., transformation = se3 (euler,"eul",sequence) specifies the sequence of the Euler angle rotations sequence. For example, the sequence "ZYX" rotates the z -axis, then the y -axis and x -axis. transformation = se3 (quat,"quat") creates an SE (3) transformation from the rotations defined by the numeric quaternions quat., MATLAB which provides quick and correct results. When the necessary inputs are ... Bt=atand(((sind(L)*cosd(D)*cosd(Az)*cosd(h))-. (cosd(L)*sind(D)*cosd(Az))+ ..., Move the legend into an open area on the graph so as to not cover up traces. Replace Figure 4 below with your version, including your name in the title. (8 points). Cosine and Sine Functions - J. Swenson o Figure 4: Plot of Cosine and Sine Functions Using MATLAB., Accepted Answer: Honglei Chen. Hi, I'm a medical researcher interested in DSP, and am trying to learn how to use MATLAB. I am just testing out basic functions, including sine and cosine functions. After inputting cos (pi/2) I got 6.1232e-17, and for sin (pi) I got 1.2246e-16. Clearly these are very close to the value 0 which I expected., The dot product is the sum of the products of the corresponding elements of 2 vectors. Both vectors have to be the same length. Geometrically, it is the product of the magnitudes of the two vectors and the cosine of the angle between them. Figure \ (\PageIndex {1}\): a*cos (θ) is the projection of the vector a onto the vector b. , Question about numerical integration for cos vs cosd. I came across this question yesterday. Here is the code: The answer, of course, y = 0.2588. Then y = 14.8292. If I do it by hand the answer is y = 0.2588 for both case. I also checked WolframAlpha and it gives me those two different answers as well., d is not an "operator". sind and cosd are simply other functions that have been defined in MATLAB for the use of people who prefer to work/think in terms of degrees and not radians. Other functions, such as tand, atand, etc., are …, When you press the green Run button, MATLAB will run the function without providing any parameters. If you run a function that has a variable (such as x) defined as a parameter, but you run the function without providing a value in that position, then MATLAB will never go hunting around elsewhere looking for an "x" defined somewhere to use as ..., c equavilent to matlab's sind and cosd function Ask Question Asked 10 years, 6 months ago Modified 10 years, 6 months ago Viewed 7k times 5 So I am working with some matlab code converting to c code by hand. I am just wondering if there is a c equivalent to the sind and cosd functions I'm seeing in the matlab code., function [x,y]=trajectory(a,time) x0=0 y0=0 k=0 angle=a*(pi./180) v=70 g=9.81 t=0:0.1:time x=x0+v*cos(angle)*t; y=y0+v*sin(angle)*t-(g*t.^2)/2 figure plot(x,y) ..., Script Files • All of the pre-built commands that you use in MATLAB® are script files or functions (plot, mean, std, exp, cosd, …) • MATLAB® allows the user to create his/her own customized m-files for specific applications or problems. • A script file is simply a collection of executable MATLAB® commands., Description. C = A.*B multiplies arrays A and B by multiplying corresponding elements. The sizes of A and B must be the same or be compatible. If the sizes of A and B are compatible, then the two arrays implicitly expand to match each other. For example, if one of A or B is a scalar, then the scalar is combined with each element of the other array., Coseno de ángulos complejos, especificado en grados. Cree un arreglo de tres ángulos complejos y calcule el coseno. y = 1×3 complex -1.0002 + 0.0000i 0.7075 - 0.0247i 0.9862 - 0.0091i., cosd: This function returns the cosine of input in degrees. Syntax: cosd(value) acos: This function returns the inverse of cosine in radians; Syntax: acos(x) acosd: This function returns the inverse of cosine in degrees. Syntax: acosd(x) cosh: This function returns the hyperbolic cosine of the value. Syntax: cosh(x), HOW to write cos^2 (t) in matlap - MATLAB Answers - MATLAB Central HOW to write cos^2 (t) in matlap Follow 1,298 views (last 30 days) Show older comments Saad Almalki on 18 Jun 2020 Vote 1 Link Commented: Walter Roberson on 1 Apr 2022 Accepted Answer: madhan ravi HOW to write cos^2 (t) in matlap 2 Comments Show 1 older comment, A python script to convert matlab files or lines of matlab code to python. This project is in alpha phase. ... (3,4)), or cosd(x), to np.cosd(np.pi/180 x) other misc functions like strcmp, strrep, reshape replaced by their python , etc; As mentioned above, SMOP does a great job to produce safe code., Hi matlab community , I am working on let' s say a homework. I realized that during the homework, The representations one of them x=[1,2,3] and x=[1;2;3] are different. What is the different be..., The cosd function can calculate on all variables within a table or timetable without indexing to access those variables. All variables must have data types that support the calculation. For more information, see Direct Calculations on Tables and Timetables., Question: The trajectory of a ball thrown by a right fielder is defined by the (x,y) coordinates as displayed in Figure. The trajectory can be modeled as y=(tanθ0)x−2rrg0cos2(θ0)gx2+y0 Use plot function of Matlab to estimate and then fzero function to determine the appropriate initial angles θ0, if v0=29 m/s, and the distance to the catcher is 80 m., Accepted Answer. the code is intened to remove rows in an image . I tested the code to check it. offset defines the upper section rows ( 1 to offset) kept in the output image. files = dir ('handheld*.jpg'); % as example : only jpeg files with "handheld" in the filename. offset = 100; % output image / upper part : we keep rows "1" to "offset" of ..., Answer to how to make the graph of the code look like this? . if 2*D..., Starting in R2022b, most Image Processing Toolbox™ functions create and perform geometric transformations using the premultiply convention. Accordingly, the affine2d object is not recommended because it uses the postmultiply convention. Although there are no plans to remove the affine2d object at this time, you can streamline your geometric ..., C/C++ コード生成 MATLAB® Coder™ を使用して C および C++ コードを生成します。 GPU コード生成 GPU Coder™ を使用して NVIDIA® GPU のための CUDA® コードを生成します。 スレッドベースの環境 MATLAB® の backgroundPool を使用してバックグラウンドでコードを実行するか、Parallel Computing Toolbox™ の ThreadPool を ..., This is what the solvers function does for us. Give it an Optimization problem and it will return the default solver that MATLAB would choose for that problem. [autosolver,allsolvers] = solvers (prob); fprintf ("The default solver for this problem is %s ",autosolver) The default solver for this problem is lsqnonlin., A ball is thrown at angle 45 , from initial height 1,5m ,with speed 4 m/s. And I have these formulas: y = h + v t sin (a)- (g t^2)/2 x = v t*cos (a) First , I want to find a place where the ball will fall. syms t h0 = 1.5; a = 45; g = 9.81; v = 4; p = solve (h0 + v*t*sind (a)- (1/2)*g*t^2 == 0,t); So, I'm trying to find ball's "flying time", to ..., Equality of Two Vectors. Create two vectors containing both real and imaginary numbers, then compare the vectors for equality. A = [1+i 3 2 4+i]; B = [1 3+i 2 4+i]; A == B. ans = 1x4 logical array 0 0 1 1. The eq function tests both real and imaginary parts for equality, and returns logical 1 ( true) only where both parts are equal., Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand ; Advertising Reach developers & technologists worldwide; About the company, Help and Support. MATLAB ® offers several options for getting help on MathWorks ® products. You can access abbreviated function help text in the Command Window, or search the documentation for in-depth, comprehensive help topics and examples. For information on specific issues not addressed in the documentation, contact MathWorks Technical ...