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Hi Bill,
Reading through "[The New Accuracy: Making 2^3=8](http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1976-11.pdf)" (HP Journal, October 1976, pages 16-17) HP took extra afford to make improvem…
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```
What steps will reproduce the problem?
The following trigonometry functions could not Integrated by symja
1.Integrate(Cos(a*x)*Sin(b*x),x)
2.Integrate(Cos(a*x)*Sin^2(b*x),x)
3.Integrate(Cos^2(a*x)…
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```
What steps will reproduce the problem?
The following trigonometry functions could not Integrated by symja
1.Integrate(Cos(a*x)*Sin(b*x),x)
2.Integrate(Cos(a*x)*Sin^2(b*x),x)
3.Integrate(Cos^2(a*x)…
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```
What steps will reproduce the problem?
The following trigonometry functions could not Integrated by symja
1.Integrate(Cos(a*x)*Sin(b*x),x)
2.Integrate(Cos(a*x)*Sin^2(b*x),x)
3.Integrate(Cos^2(a*x)…
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Based on the detailed discussion in #135, the following test case (shown below) leads to _partly_ unusual behavior for the `sin()` function.
The bahaviors are:
1. Correct answer with expected bit …
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```
What steps will reproduce the problem?
The following trigonometry functions could not Integrated by symja
1.Integrate(Cos(a*x)*Sin(b*x),x)
2.Integrate(Cos(a*x)*Sin^2(b*x),x)
3.Integrate(Cos^2(a*x)…
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* atan2
* arctan
* arcsin
* arccos
* erf
to name a few
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```
What steps will reproduce the problem?
The following trigonometry functions could not Integrated by symja
1.Integrate(Cos(a*x)*Sin(b*x),x)
2.Integrate(Cos(a*x)*Sin^2(b*x),x)
3.Integrate(Cos^2(a*x)…
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**Describe the solution you'd like**: Support for trigonometric functions, e.g. `sin` `cos` `tan`. Can be implemented using the [MacLaurin series](https://github.com/eobermuhlner/big-math/blob/2a926e7…
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It is possible to rewrite trigonometric functions to a bunch of other, more general functions that SymPy currently cannot do. See e.g. for cos
https://functions.wolfram.com/ElementaryFunctions/Cos/…