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Question: How to increase or decrease number of arrows used in DEplot?

Question:How to increase or decrease number of arrows used in DEplot?

nm 10431 Maple 2024
ode differential-equations deplot fieldplot phaseportrait plotting
January 04 2025
1

For plotting phase plot of two system of equations (autonomous), is there an option to increase of reduce number of arrows/line drawn?  I am not able to find such an option from help.

Below is an example. Google AI says stepsize should change the number of arrows, but it does not. It had no effect. Below is worksheet showing one example where I like to reduce number of arrows (not the size of the arrow, which is set to medium now).

I also tried numpoints option and it had no effect of how many arrows are drawn

> 

interface(version);

`Standard Worksheet Interface, Maple 2024.2, Windows 10, October 29 2024 Build ID 1872373`

> 

the_sys:=[diff(x(t),t) = -3*x(t)-4*y(t), diff(y(t),t) = 2*x(t)+y(t)]:
DEtools:-DEplot(the_sys,[x(t), y(t)],t =0 .. 10,x = -4 .. 4,y = -4 .. 4,'labels' = [x(t),y(t)],'axes' = 'boxed', 'arrows'='medium')

 

 

Download change_number_of_arrows_jan_4_2025.mw

For reference, I'd like to do something similar using another system as below where it has option to change number of arrows.
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