5.1.30 execute

Syntax:

execute ( string_expression )

Type:

none

Purpose:

executes a string containing a sequence of SINGULAR commands.

Note:

The command return cannot appear in the string.
execute should be avoided in procedures whenever possible, since it may give rise to name conflicts. Moreover, such procedures cannot be precompiled (a feature which SINGULAR will provide in the future).

Example:

ring r=32003,(x,y,z),dp; ideal i=x+y,z3+22y; write(":w save_i",i); ring r0=0,(x,y,z),Dp; string s="ideal k="+read("save_i")+";"; s; ==> ideal k=x+y,z3+22y ==> ; execute(s); // define the ideal k k; ==> k[1]=x+y ==> k[2]=z3+22y