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acos

acos

Arc cosine

float **acos** float $num

Returns the arc cosine of in radians. is the inverse function of , which means that for every value of that is in the domain of . num``acos``cos``$num == cos(acos($num))``num``acos

numThe argument to process

The arc cosine of in radians. num

cos``acosh``asin``atan