expands out products and powers that appear as denominators in expr.

Details and Options


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Basic Examples  (2)

Expand the denominator of a fraction:

Expand the denominator in each term:

Scope  (3)

Expand the denominator of a rational function:

ExpandDenominator threads over sums:

ExpandDenominator threads over Boolean combinations of equations and inequalities:

Options  (2)

Modulus  (1)

Expand the denominator over the integers modulo 3:

Trig  (1)

Expand the denominator using expansion formulas for trigonometric functions:

Properties & Relations  (5)

ExpandDenominator leaves the numerator unexpanded:

ExpandNumerator expands the numerator, leaving the denominator unexpanded:

Expand expands the numerator and expands the fraction into a sum of fractions:

ExpandAll expands the numerator, the denominator, and the fraction:

Use Factor, Numerator, and Denominator to factor the denominator back:

Introduced in 1988
Updated in 2007