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5.1.7 cleardenom

Syntax:

cleardenom ( poly_expression )
cleardenom ( vector_expression )

Type:

same as the input type

Purpose:

multiplies a polynomial, resp. vector, by a suitable constant to cancel all denominators from its coefficients and then divide it by its content.

Example:
 
  ring r=0,(x,y,z),dp;
  poly f=(3x+6y)^5;
  f/5;
→ 243/5x5+486x4y+1944x3y2+3888x2y3+3888xy4+7776/5y5
  cleardenom(f/5);
→ x5+10x4y+40x3y2+80x2y3+80xy4+32y5
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            User manual for Singular version 2-0-4, October 2002, generated by texi2html.