5.1.9 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 vector w= [4x2+20,6x+2,0,8]; // application to a vector print(cleardenom(w)); ==> [2x2+10,3x+1,0,4]