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After looking at the code in simp-%asin, it seems like an oversight that it doesn't handle 1/sqrt(2).
I'll try to patch that up soon.
Maxima doesn't know that asin(1/sqrt(2)) = %pi/4.
(%i9) asin(1/sqrt(2)), %piargs : 'true;
(%o9) asin(1/sqrt(2))
Here is a workaround (is there something better?)
(%i10) %,logarc, rectform;
(%o10) %pi/4
Maxima does know asin(1/2) = %pi / 6:
(%i11) asin(1/2), %piargs : 'true;
(%o11) %pi/6
Logged In: YES
user_id=28849
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After looking at the code in simp-%asin, it seems like an oversight that it doesn't handle 1/sqrt(2).
I'll try to patch that up soon.
Logged In: YES
user_id=28849
Originator: NO
Fixed in CVS: trigo.lisp, rev 1.13.