Kevin Acres on Tue, 12 May 2015 13:16:40 +0200

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incorrect type in gpow(0,n) (t_VEC)


I've noticed recently that something like [1,2,3]^[2] works fine, whereas if any element is zero I get an error:

? [0,2,3]^[2]
  ***   at top-level: [0,2,3]^[2]
  ***                        ^----
  *** _^_: incorrect type in gpow(0,n) (t_VEC).
  ***   Break loop: type 'break' to go back to GP prompt

Is there a work around for this?

As background I need to perform sqrt(vecsum(x^[2])) so maybe there is a better way of obtaining the same result.

I'm using version 2.7.2 under 64 bit linux.