MATLAB: Why ode45 response slows down

ode45slow responseslugish response

Ode45 program slows down during execution.

Among plenty of tuning variables it becomes very difficult to guess which one will make it fast?

Any help please?

Thanking Abhijit

Best Answer

This depends on what you are integrating. Consider using ode15s instead.

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My 2 cents::

1. You may want to preallocate the memory. The in each iteration, you just put the new data into corresponding slots.

2. If your entire purpose is to compute the mean, then why not just record the sum and number of samples and update them for each iteration. These are just scalars.

MATLAB: Time in seconds ode45

Create the ‘tspan’ argument as a vector of more than two elements:

tspan = 0 : 0.1 : 10;

Best Answer

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MATLAB: Is vertcat slowing things down

MATLAB: Time in seconds ode45

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