How do I get arctan MATH function in iOS?

Question

How do I get arctan MATH function in iphone SDK?

score 41 · Accepted Answer · answered Mar 17 '11 at 13:25

41

The function you are looking for is atan(double)

answered Mar 17 '11 at 13:25

Jilouc

How can i use arccos MATH function ?? – Devang Mar 17 '11 at 14:04
2

@Devang: `acos()` unsurprisingly. http://developer.apple.com/library/mac/#documentation/darwin/reference/manpages/man3/acos.3.html – JeremyP Mar 17 '11 at 14:07
This man page might be of help http://developer.apple.com/library/mac/#documentation/darwin/reference/manpages/man3/math.3.html#//apple_ref/doc/man/3/math – JeremyP Mar 17 '11 at 14:08
Does it return the value in radians or degrees? – Blip Mar 16 '15 at 01:01
2

Its in radians (*180/π) for degrees – Magster Jul 21 '15 at 05:23

score 4 · Answer 2 · answered Jul 06 '16 at 14:06

4

Use the "2nd"-function under the "("-key, top left with the iphone in horizontal position. The tan key will change to tan-1, i.e. arctan.

answered Jul 06 '16 at 14:06

MattiLi

2 Answers2