setmod

setmod([p])

:: Sets the ground field to GF(p).

return

integer

n

prime less than 2^27

• Sets the ground field to GF(p) and returns the value p.
• A member of a finite field does not have any information about the field and the arithmetic operations over GF(p) are applied with p set at the time.
• As for large finite fields, see section Finite fields.

[0] A=dp_mod(dp_ptod(2*x,[x]),3,[]);
(2)*<<1>>
[1] A+A;
addmi : invalid modulus
return to toplevel
[1] setmod(3);
3
[2] A+A;
(1)*<<1>>

References

section dp_mod, dp_rat, section Types of numbers.

Go to the first, previous, next, last section, table of contents.