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Addition of Directional Derivative Function #12416

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mohit3011 opened this issue Mar 25, 2017 · 1 comment
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Addition of Directional Derivative Function #12416

mohit3011 opened this issue Mar 25, 2017 · 1 comment

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@mohit3011
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Sympy, currently doesn't support the directional derivative function which is used for finding the components of a scalar field along a vector.

Directional Derivative functions are of importance these are used in vector mathematics as well as in differential geometry.

I hope that after this the issue has been solved we would be able to do the following:

>>> from sympy.vector import CoordSysCartesian, directional_derivative
>>> R = CoordSysCartesian('R')
>>> f1 = R.x*R.y*R.z
>>> v1 = 3*R.i + 4*R.j + R.k
>>> directional_derivative(s1, v1, R)
3*R.y*R.z + 4*R.x*R.z + R.x*R.y
@mohit3011 mohit3011 mentioned this issue Mar 25, 2017
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@mohit3011
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@jksuom , @asmeurer . Please have a look . Thanks

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