Difference between revisions of "CoCoA:E"
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<short_description>canonical vector</short_description> | <short_description>canonical vector</short_description> | ||
Latest revision as of 00:25, 2 November 2007
E_
canonical vector
Description
If N is an integer, this function returns the K-th canonical vector
of the free module of rank N over the current ring. If N is a module,
it returns the K-th canonical vector of N.
Example
Use R ::= Q[x,y]; E_(4,7); Vector(0, 0, 0, 1, 0, 0, 0) ------------------------------- M := Module([x^2,0,y^2],[x^3,x+y,y^3]); E_(2,M); Vector(0, 1, 0) -------------------------------
Syntax
E_(K:INT,N:INT or MODULE):VECTOR
<type>vector</type> <type>module</type>
