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nm, dn

nm(rat)
:: rat の分子.
dn(rat)
:: rat の分母.
return
整数または多項式
rat
有理数または有理式
[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
参照
section red.


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