|MATLAB Function Reference|
tan function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.
Y = tan(X)
returns the circular tangent of each element of
Graph the tangent function over the domain .
tan(pi/2) does not evaluate as infinite but as the reciprocal of the floating point accuracy
pi is only a floating-point approximation to the exact value of .
The tangent can be defined as
tan 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.