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Contents

Index

• Getting Started

• User's Guide

• Functions

• Desktop Tools and Development Environment

• Data Import and Export

• Mathematics

• Arrays and Matrices

• Linear Algebra

• Elementary Math

• Trigonometric

• Exponential

• Complex

• Rounding and Remainder

• Discrete Math

• Polynomials

• Interpolation and Computational Geometry

• Cartesian Coordinate System Conversion

• Nonlinear Numerical Methods

• Special Functions

• Sparse Matrices

• Math Constants

• Data Analysis

• Programming and Data Types

• Object-Oriented Programming

• Graphics

• 3-D Visualization

• GUI Development

• External Interfaces

• Examples

• Release Notes

coth - Hyperbolic cotangent

Syntax

Y = coth(X)

Description

The coth function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.

Y = coth(X) returns the hyperbolic cotangent for each element of X.

Examples

Graph the hyperbolic cotangent over the domains –π < x < 0 and 0 < x < π.

x1 = -pi+0.01:0.01:-0.01; 
x2 = 0.01:0.01:pi-0.01;
plot(x1,coth(x1),x2,coth(x2)), grid on

Definitions

The hyperbolic cotangent of z is

Algorithms

coth uses FDLIBM, which was developed at SunSoft, a Sun Microsystems, Inc. business, by Kwok C. Ng, and others. For information about FDLIBM, see http://www.netlib.org.

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