Community Profile # Pravin Jagtap

### MathWorks

Last seen: etwa 2 Jahre ago Active since 2019

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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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...

mehr als 2 Jahre ago | 0

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 ...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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 ...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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

mehr als 2 Jahre ago | 0

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 ...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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 ...

mehr als 2 Jahre ago | 0

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:...

mehr als 2 Jahre ago | 0

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,...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

| accepted

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...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 1

| accepted

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...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

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+...

mehr als 2 Jahre ago | 0

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 ...

mehr als 2 Jahre ago | 0

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...

mehr als 2 Jahre ago | 0

| accepted

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

mehr als 2 Jahre ago | 0

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...

fast 3 Jahre ago | 0