名称
cos() - return the cosine of a float
语法
float cos( float f );
描述
Returns the cosine of its argument, 'f', measured in radians.
参考
acos(3), asin(3), atan(3), sin(3), tan(3)
cos() - return the cosine of a float
float cos( float f );
Returns the cosine of its argument, 'f', measured in radians.
acos(3), asin(3), atan(3), sin(3), tan(3)
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