acos

Syntax:

Value Number  acos(Number num)

Description:

Computes the arc cosine of num.

Examples:

($b1:$b3) = acos($a)
Before:
AB C
10.7
2-0.4
30.666
4
5
6
After:
AB C
10.70.795398830184144
2-0.41.98231317286238
30.6660.841962740393027
4
5
6
($a1) = acos($self)