How do I find cos−1(−0.6481) {cos inverse} of MATH function in Objective-C? [duplicate]
Possible Duplicate:
How do I get arctan MATH function in iOS?
How do 开发者_运维技巧I find cos−1(−0.6481) {cos inverse} of MATH function in Objective-C?
math.h
is available in iPhone.
#import <math.h> double v = acos(−0.6481);
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