Just for the record...Another difference.
Look into HyperDoc -> Examples -> Expression and scroll down to
e2 := cos(x^2 - y + 3)
Next we get
(7) -> e3 := asin(e2) - %pi/2
2
2asin(cos(y - x - 3)) - %pi
(7) ----------------------------
2
whereas on NAGcdrom it shows
\[
-y+{x \sp 2}+3
\]
in development/int/doc/htex/output/EXPR.out
Next thing is
e3 :: Polynomial Integer
Daly Bug
Cannot convert from type Expression(Integer) to
Polynomial(Integer) for value
2
2asin(cos(y - x - 3)) - %pi
----------------------------
2
in FriCAS and the obvious result for the polynomial on the NAGcdrom.
What should I do about it? I guess we'll have to go through these
example pages again and revise them. The old NAG result looks incorrect
given the fact that arcsin is multivalued.
Ralf
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