ACOT

Returns the arccotangent (inverse cotangent) of a number, in radians. Results are in the range -π/2 to π/2, so negative inputs give negative results (unlike Excel’s ACOT, which returns values between 0 and π).

Examples

• ACOT(1) - Returns 0.785398163.
• ACOT(0) - Returns 1.570796327.
• ACOT(-1) - Returns -0.785398163.