OpenOffice3.org Calc 3. Mathematical Functions
TAN(number) Function
Calculates the tangent of the argument
given as an argument. This function returns a positive numeric value, negative
or zero. The tangent is a discontinuous function. The argument “number” can take a
negative value, positive or zero. As a discontinuous function, there are values
that “number”can not take. If you draw the tangent function, you must choose an
appropriate interval to avoid erroneous results. For example:
=TAN(0) Returns 0.
=TAN(PI()) Returns 0.
=TAN(0,5) Returns 0,5.