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Pravin Jagtap

MathWorks

Last seen: plus de 4 ans il y a |  Actif depuis 2019

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I am working as an Application Support Engineer in MathWorks.

My research work includes development of Parallel Algorithms using API's like openMP, MPI -Message Passing Interface, GPU-cuda for computational fluid dynamics (CFD).

Disclaimer: Any advice or opinions here are my own, and in no way reflects that of MathWorks.

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  • Knowledgeable Level 3
  • Revival Level 1
  • Knowledgeable Level 2
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Réponse apportée
color coding error_ellipse
'error_ellipse' is one of the several submissions in MATLAB File Exchange on MATLAB Central which is a forum for our product us...

plus de 4 ans il y a | 0

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mean, standard deviance, variance simplify the code if possible?
You can read the values from the matrix and calculate the mean in one line to clean up some code. For examples, replace ...

plus de 4 ans il y a | 0

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Storing error values every iteration
Hello Griffin, Please refer to the last two lines of the code: err_every_iter = iter_error; % iter_error is stored here err...

plus de 4 ans il y a | 0

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How to plot a differential equation?
Hello, You need to save the result of 'dsolve' and use it for plotting. Refer to the following code which will help you under...

plus de 4 ans il y a | 0

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How do I connect data points with a line?
Hello Byeongchan, It is not clear that what you want to achieve from your code. Especially, increment of iterator 'i' inside ...

plus de 4 ans il y a | 0

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fplot change plot axes (y versus x)
Hello Giorgia, 'fplot' is mostly used to plot a curve defined by y=f(x) where 'x' is input and 'y' is output which is the sta...

plus de 4 ans il y a | 0

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use of polyxpoly to find roots
Hello Vipul, Refer to the following documentation for understanding how 'ployxpoly' works: https://www.mathworks.com/help/ma...

plus de 4 ans il y a | 0

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How can I solve this question
Hello, As mentioned in the above comments, there are enough hints in question. This exercise will benefit you in understanding ...

plus de 4 ans il y a | 0

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How can I connect my equations for a shear/bending moment diagram?
Hello, I would recommend you to take a look at this question which deals with the similar issue of plotting shear force and b...

plus de 4 ans il y a | 0

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Figuring out the stimulus of FitzHugh Nagumo equations with ode45
Hello Kate, Refer to the following documentation link to understand how to solve system of differential equations. Also refer t...

presque 5 ans il y a | 0

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ode45 for Thwaites Method
Hello Zachary, Refer to the following documentation link of ‘ode45’ function. This will give your better insights into how to u...

presque 5 ans il y a | 0

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How can I get this function to run with a Tolerance of 10^-7 while keeping the same numerical outputs
Hello Savana, I am assuming that the above question in the extension of your earlier question (https://www.mathworks.com/matlab...

presque 5 ans il y a | 0

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How to get this help file to run
Hello Savana, The issue which you are facing is not clear from your question and code. I found a similar question you posted ...

presque 5 ans il y a | 0

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Numerical simulation of population growth
Hello Clementine, As mentioned above, if you are dealing with ODE refer to following documentation of 'ode45' to solve the ODE:...

presque 5 ans il y a | 0

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How to input this Gauss-seidel problem into the following code( code might need work)
Hello Steven, I am assuming that you are using the code written by someone else for your homework question. For your problem,...

presque 5 ans il y a | 0

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How do I set up code for an RK4 Method?
Hello Christina, Refer to following MATLAB Answer: https://www.mathworks.com/matlabcentral/answers/434525-how-to-create-rung...

presque 5 ans il y a | 0

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Euler method and Graph
Hello Nasir, Refer to the following function which takes ‘dt’ and ‘y0’ as an input argument and returns the ‘y’ as solution f...

presque 5 ans il y a | 0

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algorithm for computing ? is due to Archimedes: how steps can be repeated
Hello Anastasia, As mentioned in the above comments, I would recommend you to follow the docum...

presque 5 ans il y a | 0

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Improving performance of a complex for loop
Hello Rafi, From your code and data structure used it is clear that there are two for loops: Outside for loops iterates over t...

presque 5 ans il y a | 0

| A accepté

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lsqnonlin with vector input and multiple equations.
Hello Emma, The error mentioned is caused because of the way 'function handle' is used (steadystate=@(x) f(x);). In your case...

presque 5 ans il y a | 0

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fminsearch giving results below initialisation point
Hello Udi, I think this can happen because it depends on the function and starting point (Since 'fminseach' function uses heu...

presque 5 ans il y a | 1

| A accepté

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Is there a way to get the confidence bounds when fitting curves using optimisation toolbox
Hello Kieran, As you noted correctly curve fitting toolbox ('fit') gives the 'goodness of fit' metric whereas optimization ap...

presque 5 ans il y a | 0

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Coupled ODE Solver Producing Unexpected Graph
Hello Brooke, Please refer to following documentation for solving coupled system of ODEs https://www.mathworks.com/help/symb...

presque 5 ans il y a | 0

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How do convert the following set of time dependent differential equations into a set of discrete equations? Please provide code.
Hello Varun, I am assuming the constant time step 'dt'. Please refer following snipet to get an idea and write the code x(k+...

presque 5 ans il y a | 0

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1D PDE in Matlab with pdepe, first order
Hello JulianK, ‘pdepe’ is used to solve system of parabolic and elliptic PDEs with one temporal and one spatial variable (Make ...

presque 5 ans il y a | 0

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GPU coder : When I use GPU coder to any function, Do I need to type coder.gpu.kernelfun in all subfunctions in the main function?
Hello Lim, I think, Dynamic kernel invocation i.e calling kernels from within kernels is not supported by GPU coder yet. Theref...

presque 5 ans il y a | 0

| A accepté

Réponse apportée
Plotting Streamlines that start from the origin for each streamline
Hello Omar, I suggest you to refer this documentataion for plotting streamlines. ~Pravin

presque 5 ans il y a | 0

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How do I create a function to select the right excel table and data from this table with given parameters?
Hello, Refer following code to load the data in MATLAB workspace: [~,sheet_name]=xlsfinfo('Book1.xlsx'); % 'Book1.xlsx' is t...

presque 5 ans il y a | 0

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Write a function file finds real roots for any function f(x).
Hello Timothy, Please refer to following documentation which may help you in writing the function: https://www.mathworks.com...

presque 5 ans il y a | 0

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Can someone help us modify our current code in order to store all of the desired output variables as columns of a single file?
Hello Steve, The objective mentioned in the question can be easily achieved by using the ‘save’ command. Refer following exam...

presque 5 ans il y a | 0

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