# Sai Veeramachaneni

### MathWorks

I am Application Software Engineer at MathWorks.

My area of interests include Simulink, MATLAB, Deep Learning.

Disclaimer: Any opinion here are my own and in no way reflect that of MathWorks.

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**Content Feed**

Vector Dot Product using Matrix

Hi, Refer to this example. For multidimensional arrays, dot function calculates the dot product of corresponding vectors along...

nästan 3 år ago | 0

Dependent property for subclasses

Hi, get.a is not a valid function name, Valid function names begin with an alphabetic character, and can contain letters, numbe...

nästan 3 år ago | 0

Initializing MATLAB Graphics failed in Linux.

Hi, Your issue might be related to this known bug. I suggest you to contact support for startup issues Thanks

nästan 3 år ago | 0

How can I rewrite symbolic expression as a function of another symbolic expression?

Hi, You can leverage syms, diff functions to implement your functionality Example: syms x y V = x^2+y^2 f1 = x f2 = -x+y...

nästan 3 år ago | 0

MatLab Equation - Two Unknowns

Hi, Nl_Final==(1-((tan(h)*(n*s_AR))/(n*s_AR))); In the above equation n*s_AR is getting cancelled out in numerator and denomin...

nästan 3 år ago | 0

Get coeffs of exponents

Hi, You can use syms and coeffs. Example: syms t w i A=-1*exp(t*w*-1i)/2 + exp(t*w*1i)/2 - exp(t*w*2i)/2 + exp(t*w*-2i)/2 c...

nästan 3 år ago | 0

| accepted

I am getting an error

Hi, Try navigating to different folder and repeat the intended action. A quick fix is to type below command in command window ...

nästan 3 år ago | 0

from urdf to simscape model

Hi, You can import urdf model into Simscape using smimport. References: Urdf-import Hope it helps.

nästan 3 år ago | 0

| accepted

how to change time interval to day, month and year?

Hi, Stop time indicates the period of time for the simulation to run from the start time. It is simulation time which is not sa...

nästan 3 år ago | 0

Whenever i open matlab i see following error message. I am also not able to draw graph in matlab due to this issue. I am using a debian machine with nvidia graphics card.

Hi, Try executing one of the following commands in debian shell to start MATLAB matlab -nodesktop -r "opengl info, desktop" m...

nästan 3 år ago | 0

Download files from an URL

Hi, i = strsplit(url, '/'); y = length(i); fileName = i(y); It seems that above lines of code makes the fileName variable...

nästan 3 år ago | 0

| accepted

What is the difference between Optimproblem and linprog

Hi, There are two ways to solve an optimization problem. 1) Problem-based 2) Solver-based Problem-based approach involves c...

nästan 3 år ago | 0

| accepted

download matlab R2020b in windows 10

Hi, This is not expected behaviour and can't be reproduce at my end. I suggest you to contact MathWorks support to resolve this...

ungefär 3 år ago | 0

| accepted

can we use the current versions of matlab without updating

Hi, You can use existing version of your MATLAB without updating, but you can't use the features released in later versions.

ungefär 3 år ago | 1

Possible to create new classification learner to add to Classification Learner app?

Hi, Adding custom classification learner to drop-down menu in Classification Learner app is currently not supported.

ungefär 3 år ago | 0

| accepted

Sharing data among AppDesigner, Functions and Simulink Model.

Hi, You can use assignin function to assign variables in base workspace, also try methods suggested here. Hope it helps.

ungefär 3 år ago | 1

| accepted

how to extract an extra variable which is calculated in ode function to main workspace?

Hi, You can leverage assignin and evalin functions for your usecase. Hope it helps.

ungefär 3 år ago | 0

for loop sequence from the matrix

Your question can be split into two parts. Identifying discontinous numbers in the matrix A. Exeute the for loop with +5 and -...

ungefär 3 år ago | 0

use java class with '$' symbol in the class name

Hi, It seems that Builder is a nested class inside GoogleAuthorizationCodeFlow.($ denotes presence of inner class) Try import...

ungefär 3 år ago | 0

To Expand Subsystem by using model explorer

Hi, One possible idea is to use Simulink.BlockDiagram.expandSubsystem(subsys). Step-1: Get all the blocks and subsystems in th...

ungefär 3 år ago | 1

| accepted

How to make a polar plot using element-by-element multiplcation

Hi, You can refer to polarplot function and try some examples from here.

ungefär 3 år ago | 0

How do we vary hyperparameters to find the optimal values?

Hi, You can try parameters listed here to build the optimal model which is suitable for your dataset.

ungefär 3 år ago | 0

Finding several peaks in a vector

Hi, You can use islocalmax and islocalmin functions to calculate locations of local maximums and minimums respectively. You ca...

ungefär 3 år ago | 0

neural network with bayesian regularization: find weights and biases and recalculate the network

Hi, You can use net.IW, net.LW, net.b properties of neural network object to get weights and biases used in the network. You c...

ungefär 3 år ago | 1

| accepted

How to find the Elements of a Coefficient Matrix?

Hi, You can leverage coeffs function to find coefficients of an equation. Example- syms A B C x y E=A+A*x^2+B*x+C*x+C*x^2+A...

ungefär 3 år ago | 1

| accepted

What different parameters can I use to see any effect it has on the model?

You can try all the parameters of NaiveBayes.fit as specified here. For your information - According to the R2018a Release Note...

ungefär 3 år ago | 0

An array / matrix of tables

Hi. I think you are using smooth parenthesis for assigning table to cell index i.e. c(1)=Table which results in "Can't convert ...

mer än 3 år ago | 0

Find first item with a certain condition and use it, instead of finding all items with that condition

Your second example using find is not feasible due to memory limitations. To my understanding you are doing linear search and ...

mer än 3 år ago | 0

what's the difference bewteen the scatternign tarsnform and cwt function?

cwt function – It performs the continuous wavelet transform (CWT) for the given input signal. It returns the wavelet coefficient...

mer än 3 år ago | 0