dp_sp, dp_sp_mod

dp_sp(dpoly1,dpoly2)

dp_sp_mod(dpoly1,dpoly2,mod)

:: Computation of an S-polynomial

return

distributed polynomial

dpoly1, dpoly2

distributed polynomial

mod

prime

• This function computes the S-polynomial of dpoly1 and dpoly2.
• Inputs of dp_sp_mod() must be polynomials with coefficients in a finite field.
• The result may be multiplied by a constant in the ground field in order to make the result integral.

[227] X=dp_ptod(x^2*y+x*y,[x,y]);
(1)*<<2,1>>+(1)*<<1,1>>
[228] Y=dp_ptod(x*y^2+x*y,[x,y]);
(1)*<<1,2>>+(1)*<<1,1>>
[229] dp_sp(X,Y);
(-1)*<<2,1>>+(1)*<<1,2>>

References

section dp_mod, dp_rat.

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