There are simple ways to extend a matrix to form a larger matrix: I can augment it to add columns or stack it to add rows.
Is there something similar for simple vectors? Some method of a vector object which would return the same vector with one more element added to the end? Or do I have to write that myself?
According to the tab completion, appart from the .cartesian_product() method that will make a couple of vectors, there seem no direct way to do this.
You can have a look at this question and that question, though i would advise to keep track of the base ring of your initial vector (if needed) as follows:
sage: v = vector(QQ,[0,1,2]) ; v
(0, 1, 2)
sage: v.parent()
Vector space of dimension 3 over Rational Field
sage: v = vector(v.base_ring(), v.list() + [QQbar(1/2)]) ; v
(0, 1, 2, 1/2)
sage: v.parent()
Vector space of dimension 4 over Rational Field
Asked: 2013-10-17 12:42:32 +0100
Seen: 1,070 times
Last updated: Oct 17 '13
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