Hi Sartaj,
I think you didn't understood my point. I am looking for mathematical
substitution, not exact
substitution.
exp(5*x).xreplace({exp(5*x): sin(5*x)}) is just a mere example of usage of
xreplace. I am not
looking for exact replacement. the exponent can be anything
For example:
>>> sin(exp(x)).some_replace_func({exp: x})
>>> sin(x)
>>> exp(5*x).some_replace_func({exp(x): sin(x)})
>>> exp(5*x)
Thanks,
Best,
Adrian
On Friday, August 14, 2015 at 1:48:44 AM UTC+5:30, Sartaj Singh wrote:
>
> Try this,
>
> >>> exp(5*x).xreplace({exp(5*x): sin(5*x)})
> sin(5*x)
>
> On 14 August 2015 at 00:24, Adrián Ashley <[email protected] <javascript:>>
> wrote:
>
>> Hello,
>>
>> How can I substitute/replace something mathematically from an expression:
>>
>> For example:
>>
>> >>> exp(5*x).xreplace({exp(x): sin(x)})
>> >>> exp(5*x) # I would expect sin(x)**5 here
>>
>>
>> In better way to do the above thing?
>>
>> Thanks,
>> Best,
>>
>> --
>> Adrian
>>
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>
>
>
> --
> Regards
> *Sartaj Singh*
>
> *Mathematics and Computing*,
> Indian Institute of Technology,
> Varanasi - 221 005 INDIA
>
> E-mail: [email protected] <javascript:>, *[email protected]
> <javascript:>*
>
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