Why cannot we use asin, atan, or acos?? [just asinl .. ] (-)

Re: Why cannot we use asin, atan, or acos?? [just asinl .. ] (-)

Actually Pascal&Delphi have only ArcTan(x).

ArcSin(x) is calculted as

ArcSin(x) := ArcTan(x/sqrt(1-sqr(x)));

ArcCos(x) := ArcTan(sqrt(1-sqr(x))/x);

That is.

I mean for C++, anyway thanks :) (-)

> Actually Pascal&Delphi have only ArcTan(x).

> ArcSin(x) is calculted as

> ArcSin(x) := ArcTan(x/sqrt(1-sqr(x)));

> ArcCos(x) := ArcTan(sqrt(1-sqr(x))/x);

> That is.