Rsqrt
rsqrt(input, out=NULL) -> Tensor
Returns a new tensor with the reciprocal of the square-root of each of
the elements of input.
$$ \mbox{out}_{i} = \frac{1}{\sqrt{\mbox{input}_{i}}} $$
Examples
if (torch_is_installed()) {
a = torch_randn(c(4))
a
torch_rsqrt(a)
}
#> torch_tensor
#> nan
#> 3.2777
#> 1.3045
#> nan
#> [ CPUFloatType{4} ]