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C++ API

: sumsq (x)

: sumsq (x, dim)

Sum of squares of elements along dimension dim.

If dim is omitted, it defaults to the first non-singleton dimension.

This function is conceptually equivalent to computing

sum (x .* conj (x), dim)

but it uses less memory and avoids calling conj if x is real.

See also: sum, prod.

Package: octave