Modern Math CCot

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CCot

Returns the cotangent of a complex number, one over the tangent.

Syntax

CCot( byref z as Complex ) as Complex

Notes

• CReciprocal( CTan( z ) ), so it inherits CTan's overflow guard.
• Approaches ∓i for a large imaginary part, which is where the guard earns itself.

Examples

#import "std/numeric"
using numeric

dim as Complex z = CSet( 0.5, 0.25 )

print CToString( CCot( z ) )               '' 1.432721075387994-0.8872370407840959i
print CToString( CCot( CSet( 1, 750 ) ) )  '' 0-1i   -- finite, heading for -i

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Library: Math Library
Category: Math Library
Documented under: Members