simplify trigonomtric problem

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Sep 25, 2016, 7:33:52 AM9/25/16

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hello, i was trying to simplify a trigonometric expression and it didn’t work, can you help me please? my computer uses the last IOS version

A=cos(x)^5+sin(x)^4+2*cos(x)^2-2*sin(x)^2-cos(2*x)

A.simplify_full()

Traceback (click to the left of this block for traceback)
...
RuntimeError: ECL says: The function SET-LOCALE-SUBDIR is undefined.

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Sep 25, 2016, 3:39:24 PM9/25/16

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2016-09-25 13:33:52 UTC+2, Joan Pujol:

Searching sage-support for SET-LOCALE-SUBDIR

reveals a previous discussion about similar problems under OS X

This is tracked at Sage trac ticket #21443

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