Sum of squares
Write a program to find the sum of squares of a numeric vector. The program should work on a zero-length vector (with an answer of 0).
Sum of squares
You are encouraged to solve this task according to the task description, using any language you may know.
You are encouraged to solve this task according to the task description, using any language you may know.
J
ss=: +/ @: *:
That is, sum composed with square. The verb also works on higher-ranked arrays. For example:
ss 3 1 4 1 5 9 133 ss $0 NB. $0 is a zero-length vector 0 x=: 20 4 ?@$ 0 NB. a 20-by-4 table of random (0,1) numbers ss x 9.09516 5.19512 5.84173 6.6916