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nm, dn

nm(rat)
:: Numerator of rat.
dn(rat)
:: Denominator of rat.
return
integer or polynomial
rat
rational number or rational expression
[2] [nm(-43/8),dn(-43/8)];
[-43,8]
[3] dn((x*z)/(x*y));
y*x
[3] dn(red((x*z)/(x*y)));
y
References
section red.


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