# ideal(String) -- make an ideal using classic Macaulay syntax

## Synopsis

• Function: ideal
• Usage:
ideal s
• Inputs:
• s, , in the form: "f1,f2,...,fr"
• Outputs:

## Description

Creates an ideal using an abbreviated format. Each polynomial has the form described in Classic. The polynomials are separated by commas. Spaces and newline characters are ignored.

 i1 : R = ZZ/32003[a..d,x_1..x_4]; i2 : I = ideal "a+b2-1,(a+b)(c+d),x[1]-x[2]3" 2 3 o2 = ideal (b + a - 1, a*c + b*c + a*d + b*d, - x + x ) 2 1 o2 : Ideal of R