lcm

Arguments

p

a polynomial row vector p = [p1, ..., pn] (type equal to 2) or an integer row vector (type equal to 8).

fact

a polynomial vector or an integer vector.

pp

a polynomial or an integer.

Description

pp = lcm(p) computes the lcm pp of polynomial vector p.

[pp, fact] = lcm(p) computes in addition the vector fact such that:

p.*fact = pp*ones(p).

The least common multiple of an array p of real numbers can be obtained by converting it to a polynomial before calling lcm, through p = inv_coeff(p, 0).

Examples

//polynomial case
s=poly(0,'s');
p=[s,s*(s+1)^2,s^2*(s+2)];
[pp,fact]=lcm(p);
p.*fact, pp

//integer case
V=int32([2^2*3^5, 2^3*3^2,2^2*3^4*5]);
lcm(V)

See Also

• gcd — Greatest Common Divisor
• bezout — Bezout equation for polynomials or integers