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<head><title>ideal(String) -- make an ideal using classic Macaulay syntax</title>
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<div><a href="index.html" title="a parser for classic Macaulay syntax">Classic</a> > <a href="_ideal_lp__String_rp.html" title="make an ideal using classic Macaulay syntax">ideal(String)</a></div>
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<div><h1>ideal(String) -- make an ideal using classic Macaulay syntax</h1>
<div class="single"><h2>Synopsis</h2>
<ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>ideal s</tt></div>
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<li><span>Function: <a href="../../Macaulay2Doc/html/_ideal.html" title="make an ideal">ideal</a></span></li>
<li><div class="single">Inputs:<ul><li><span><tt>s</tt>, <span>a <a href="../../Macaulay2Doc/html/___String.html">string</a></span>, in the form: "f1,f2,...,fr"</span></li>
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<li><div class="single">Outputs:<ul><li><span><span>an <a href="../../Macaulay2Doc/html/___Ideal.html">ideal</a></span></span></li>
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<div class="single"><h2>Description</h2>
<div><p>Creates an ideal using an abbreviated format. Each polynomial has the form described in <a href="index.html" title="a parser for classic Macaulay syntax">Classic</a>. The polynomials are separated by commas. Spaces and newline characters are ignored.</p>
<table class="examples"><tr><td><pre>i1 : R = ZZ/32003[a..d,x_1..x_4];</pre>
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<tr><td><pre>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</pre>
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<div class="single"><h2>See also</h2>
<ul><li><span><a href="_poly_lp__String_rp.html" title="make a polynomial using classic Macaulay syntax">poly(String)</a> -- make a polynomial using classic Macaulay syntax</span></li>
<li><span><a href="_matrix_lp__String_rp.html" title="make a matrix using classic Macaulay syntax">matrix(String)</a> -- make a matrix using classic Macaulay syntax</span></li>
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