significand

significand(x)

Extract the `significand(s)` (a.k.a. mantissa), in binary representation, of a floating-point number or array. If `x` is a non-zero finite number, than the result will be a number of the same type on the interval \$[1,2)\$. Otherwise `x` is returned.

``````julia> significand(15.2)/15.2
0.125

julia> significand(15.2)*8
15.2``````

Examples

The `significand(x)` function in Julia extracts the significand (also known as mantissa) in binary representation of a floating-point number or array. If the input `x` is a non-zero finite number, the result will be a number of the same type within the interval `[1, 2)`. If `x` is not a finite number, it is returned as is.

Here are some examples of how the `significand` function can be used:

1. Extract significand of a floating-point number:

``````julia> significand(15.2)
0.125``````

In this example, the significand of the floating-point number `15.2` is extracted and returned as `0.125`.

2. Multiply the significand by a factor:
``````julia> significand(15.2) * 8
15.2``````

Here, the significand of `15.2` is multiplied by `8`, resulting in the original value `15.2`.

Common mistake example:

``````julia> significand(0)
ERROR: DomainError with 0.0:
significand is only defined for non-zero finite numbers.``````

In this example, the input `0` is not a finite number, so the `significand` function throws a `DomainError`. Make sure to provide a non-zero finite number as input to `significand` to avoid this error.