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Section: Mathematical Functions
Computes the tan
function for its argument. The general syntax for its use is
y = tan(x)
where x
is an n
-dimensional array of numerical type. Integer types are promoted to the double
type prior to calculation of the tan
function. Output y
is of the same size and type as the input x
, (unless x
is an integer, in which case y
is a double
type).
Mathematically, the tan
function is defined for all real valued arguments x
by the infinite summation
or alternately by the ratio
For complex valued arguments z
, the tangent is computed via
The following piece of code plots the real-valued tan(x)
function over the interval [-1,1]
:
--> t = linspace(-1,1); --> plot(t,tan(t))