## 10 Reputation

18 years, 71 days

## Euler's method, Heun's Method, RK4 metho...

The graphics and maple code for these 3 methods can be found at URL

http://www.math.utah.edu/~gustafso/s2013/2250/2250mapleL4-sample-S2013.pdf

Deep in the PDF file you will find a display for Euler's method. Here's  a .mpl file

for mouse copy and paste into maple 12, made from the above resource.

eulersMethod.mpl

Best, Grant Gustafson

## Euler's method, Heun's Method, RK4 metho...

The graphics and maple code for these 3 methods can be found at URL

http://www.math.utah.edu/~gustafso/s2013/2250/2250mapleL4-sample-S2013.pdf

Deep in the PDF file you will find a display for Euler's method. Here's  a .mpl file

for mouse copy and paste into maple 12, made from the above resource.

eulersMethod.mpl

Best, Grant Gustafson

## sources tested with maple 15...

Dear Axel,

Glad to hear you found the code and tried it!

Best, Grant Gustafson

## Plot an impulse train: an example...

I tried a file upload. Paste of the text  from gedit failed. Best, Grant

impulseTrain-plot-Di.mpl

impulseTrain-plot-Di.pdf

## failed post...

After two attempts to post sample I code, with web site failure, I quit.

This is not worth my time.

## Dirac plots and maple versions...

Dear Carl,

The plot of Dirac, at least in maple versions 15 or less, produces an empty plot. If not empty, then it is at least not what is expected and it is not useful for anything. I have no access to maple 16 or 17, just yet.

The lack of an error message is not proof that the plot is useful. A correct plot of a Dirac distribution is empty. A useful plot contains approximations to Dirac, something visible which shows the force applied, even though the interval is incorrect.

I tried to post sample code, but was prevented from doing so by the MaplePrimes web site. Perhaps when the issue is resolved, then I can post examples.

I have my doubts that this reply will work, because it did not 24 hours ago. If so, then wonderful, I am glad.

Best, Grant Gustafson

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