Jonathan,
Hi there and thanks for your assistance.
Is this the behavior I am trying to get? Quite possibly. Having trouble
installing "algebra_with_sympy". Do I need to be admin? My installation
attempt is as follows:
pip install -U Algebra-with-SymPy
... lots of stuff, followed finally by
ERROR: Could not install packages due to an OSError: [WinError 5] Access is
denied:
'C:\\Users\\python\\AppData\\Local\\Temp\\pip-uninstall-pns2p03y\\jupyter-kernel.exe'
Consider using the `--user` option or check the permissions.
Thanks again,
Andre
On Tuesday, April 19, 2022 at 2:16:25 PM UTC+1 gu...@uwosh.edu wrote:
> Is this the behavior you are trying to get?
>
>
> >>> from algebra_with_sympy import *
> >>> algwsym_config.output.human_text=True
> >>> var('psi k x')
> (psi, k, x)
> >>> eq1=Eqn(psi, exp(I*k*x))
> >>> eq1
> psi = exp(I*k*x)
> >>> eq2 =diff(eq1,x)
> >>> eq2
> Derivative(psi, x) = I*k*exp(I*k*x)
> >>> eq2.subs({exp(I*k*x):psi})
> Derivative(psi, x) = I*k*psi
>
> Jonathan
> On Tuesday, April 19, 2022 at 7:50:54 AM UTC-5 andre...@gmail.com wrote:
>
>> When I differentiate the function
>>
>> ψ = exp(I*(k*x))
>>
>> I get
>>
>> i*k*exp(I*(k*x)). [which is i*k*ψ]
>>
>> Is there a way to get exp(I*(k*x)) substituted with ψ, in order to get
>> the shorter expression i*k*ψ ?
>>
>> Thanks,
>> André
>>
>>
>>
>>
>>
>>
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