--- layout: stdlib-reference --- # frexp ## Description Split float into mantissa and exponent. ## Signature

T frexp<T>(
    T x,
    out int exp)
    where T : __BuiltinFloatingPointType;

vector<T, N> frexp<T, int N>(
    vector<T, N> x,
    out vector<int, N> exp)
    where T : __BuiltinFloatingPointType;

matrix<T, N, M> frexp<T, int N, int M, int L>(
    matrix<T, N, M> x,
    out matrix<int, N, M> exp)
    where T : __BuiltinFloatingPointType;

## Generic Parameters #### T: [\_\_BuiltinFloatingPointType](../interfaces/0_builtinfloatingpointtype-029hm/index.html) #### N : int #### M : int #### L : int ## Parameters #### x : [T](frexp.html#typeparam-T) The input value. #### exp : int \[out\] The output exponent. #### x : [vector](../types/vector/index.html)\<[T](../types/vector/index.html#typeparam-T), [N](../types/vector/index.html#decl-N)\> The input value. #### exp : [vector](../types/vector/index.html)\ \[out\] The output exponent. #### x : [matrix](../types/matrix/index.html)\<[T](../types/matrix/t-0.html), [N](../types/matrix/index.html#decl-N), [M](../types/matrix/index.html#decl-M)\> The input value. #### exp : [matrix](../types/matrix/index.html)\ \[out\] The output exponent. ## Return value The mantissa of x. ## Availability and Requirements Defined for the following targets: #### hlsl Available in all stages. #### glsl Available in all stages. #### cpp Available in all stages. #### cuda Available in all stages. #### metal Available in all stages. #### wgsl Available in all stages. #### spirv Available in all stages. #### llvm Available in all stages.