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ACOT.(X)
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1993-10-16
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205b
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7 lines
# acot(x) is the arc cotangent function of x. The inverse function
# of cot(x). The reult is given in radians. acot=pi/2-atan(x)
# See aslo: cot, atan.
acot(x_) := if( isnumber(x), pi/2-atan(x) )