please add arcsin, arccos, arctan to speedcrunch

[heldercorreia]

Originally reported on Google Code with ID 31

What steps will reproduce the problem?
1. try to calculate arcsin(0.5)

What is the expected output? What do you see instead?
expecting: 30° or 0.5235..
what i see:
Error: Undefined variable'arcsin'

What version of the product are you using? On what operating system?
0.7-beta2 kubuntu feisty 7.04

Please provide any additional information below.
today i had to make a quick arcsin. i saw that speedcrunch has sin, but 
not arcsin. sadly i had to search my TI89 after that. would be handy to 
have it.

Reported by fryx.asraniel on 2007-05-07 21:37:50

[heldercorreia]

SpeedCrunch has these functions already, but they are called asin, acos and atan.

Reported by ariya.hidayat on 2007-05-08 11:40:41

• Status changed: Fixed

[heldercorreia]

Reported by helder.pereira.correia on 2007-05-15 12:38:54

• Status changed: Invalid