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32 lines
643 B
Plaintext
32 lines
643 B
Plaintext
NAME
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acot - inverse trigonometric cotangent
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SYNOPSIS
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acot(x [,eps])
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TYPES
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x real
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eps nonzero real, defaults to epsilon()
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return real
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DESCRIPTION
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Returns the acot of x to a multiple of eps with error less in
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absolute value than .75 * eps.
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v = acot(x) is the number in (0, pi) for which cot(v) = x.
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EXAMPLE
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> print acot(2, 1e-5), acot(2, 1e-10), acot(2, 1e-15), acot(2, 1e-20)
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.46365 .463647609 .463647609000806 .46364760900080611621
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LIMITS
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unlike sin and cos, x must be real
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eps > 0
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LIBRARY
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NUMBER *qacot(NUMBER *x, NUMBER *eps)
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SEE ALSO
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asin, acos, atan, asec, acsc, epsilon
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