I tryed
# w = y''
# z = y'
var('x, w, z')
desolve_system_rk4( [w , 4*z + x] , [w,z] , ics = [0,1,0], ivar = x,
end_points = 10, step = 0.1)
But does no work correty :(
Em terça-feira, 6 de setembro de 2016 09:43:43 UTC-3,
[email protected] escreveu:
>
> I could not define a way to insert the arguments in RK4 command :(
>
> Em terça-feira, 6 de setembro de 2016 06:37:18 UTC-3, David Joyner
> escreveu:
>>
>> On Mon, Sep 5, 2016 at 9:33 PM, <[email protected]> wrote:
>> > How to solve ODE y'' - 4y' + y - x = 0 using rk4? :(
>> >
>>
>>
>> http://doc.sagemath.org/html/en/reference/calculus/sage/calculus/desolvers.html
>>
>> lists dsolve_rk4.
>> Was there a specific problem you encountered?
>>
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>
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