According to the documentation

Returns the indices that would sort an array.

`2`

is the index of`0.0`

.`3`

is the index of`0.1`

.`1`

is the index of`1.41`

.`0`

is the index of`1.48`

.

According to the documentation

Returns the indices that would sort an array.

`2`

is the index of`0.0`

.`3`

is the index of`0.1`

.`1`

is the index of`1.41`

.`0`

is the index of`1.48`

.