Atan2
A function in many programming languages for computing the arctangent with two arguments
Sqrt
The `sqrt` function returns the positive square root of a number in several programming languages.
Others
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With typical libraries on common modern hardware sqrt is faster than atan2 from question Which is more efficient, atan2 or sqrt? |
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Indeed sqrt is better than atan2 and 1 sqrt is better than sqrt from question Which is more efficient, atan2 or sqrt? |