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| tan, tanh | Examples See Also |
Tangent and hyperbolic tangent
Y = tan(X) Y = tanh(X)The
tan and tanh functions operate element-wise on arrays. The functions' domains and ranges include complex values. All angles are in radians.
Y = tan(X)
returns the circular tangent of each element of X.
Y = tanh(X)
returns the hyperbolic tangent of each element of X.
Graph the tangent function over the domain 
and the hyperbolic tangent function over the domain 
x = (-pi/2)+0.01:0.01:(pi/2)-0.01; plot(x,tan(x)) x = -5:0.01:5; plot(x,tanh(x))The expression
tan(pi/2) does not evaluate as infinite but as the reciprocal of the floating point accuracy eps since pi is only a floating-point approximation to the exact value of 
.
atan, atan2