return the numerator of an expression
return the denominator of an expression
The numer(x) function returns the following results for the indicated numeric formats of x.
Format of x
numerator of x
x multiplied by the common denominator
of the real and imaginary parts of x
The denom(x) function returns the following results for the indicated numeric formats of x.
denominator of x
common denominator of the real and
imaginary parts of x
If x is not numeric, the numer and denom functions are typically called after first using the normal function. The normal function is used to put an expression in the form numerator/denominator where both the numerator and denominator are polynomials. Once x has been normalized, the numer(x) function simply chooses the numerator of x. The case is similar for denom(x). Note: If x is in normal form, the numerator and denominator have integer coefficients.
If x is not in normal form, Maple converts it into a normal form (not necessarily the same form that would be returned by the normal function) and a common denominator is found so that x can be expressed in the form numerator/denominator.
If x is not in normal form, Maple converts it into a normal form.
a ≔ 1x3−1−x+x2x3
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