Denominator Command

Denominator( <Function> )

Returns the denominator of a function.

Denominator(5 / (x^2 + 2)) yields f(x)=(x2 + 2).

Denominator( <Number> )

For a rational number returns its denominator. It uses a numerical method, which limits this command to numbers with small denominator. For irrational input the denominator of its continued fraction is returned.

See also Numerator Command and FractionText Command.

CAS Syntax

Denominator( <Expression> )

Returns the denominator of a rational number or expression.

Denominator(2 / 3 + 1 / 15) yields 15.