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D.2.5.4 rMacaulay

Procedure from library inout.lib (see inout_lib).

Usage:
rMacaulay(s[,n]); s string, n integer

Return:
A string denoting a file which should be readable by Singular and it should be produced by Macaulay Classic.
If a second argument is present the first
n lines of the file are deleted (which is useful if the file was produced e.g. by the putstd command of Macaulay).

Note:
This does not always work with 'cut and paste' since the character \ is treated differently

Example:
 
LIB "inout.lib";
// Assume there exists a file 'Macid' with the following ideal in
// Macaulay format:"
// x[0]3-101/74x[0]2x[1]+7371x[0]x[1]2-13/83x[1]3-x[0]2x[2] \
//     -4/71x[0]x[1]x[2]
// Read this file into Singular and assign it to the string s1 by:
// string s1 = read("Macid");
// This is equivalent to";
string s1 =
"x[0]3-101/74x[0]2x[1]+7371x[0]x[1]2-13/83x[1]3-x[0]2x[2]-4/71x[0]x[1]x[2]";
rMacaulay(s1);
==> x(0)^3-101/74*x(0)^2*x(1)+7371*x(0)*x(1)^2-13/83*x(1)^3-x(0)^2*x(2)-4/71*\
   x(0)*x(1)*x(2)
// You may wish to assign s1 to a Singular ideal id:
string sid = "ideal id =",rMacaulay(s1),";";
ring r = 0,x(0..3),dp;
execute(sid);
id; "";
==> id[1]=x(0)^3-101/74*x(0)^2*x(1)+7371*x(0)*x(1)^2-13/83*x(1)^3-x(0)^2*x(2)\
   -4/71*x(0)*x(1)*x(2)
==> 
// Now treat a matrix in Macaulay format. Using the execute
// command, this could be assigned to a Singular matrix as above.
string s2 = "
0  0  0  0  0
a3 0  0  0  0
0  b3 0  0  0
0  0  c3 0  0
0  0  0  d3 0
0  0  0  0  e3 ";
rMacaulay(s2);
==> 0, 0, 0, 0, 0,
==> a3,0, 0, 0, 0,
==> 0, b3,0, 0, 0,
==> 0, 0, c3,0, 0,
==> 0, 0, 0, d3,0,
==> 0, 0, 0, 0, e3


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