--- layout: stdlib-reference --- # interface IDifferentiableMutatingFunc\ *Inherits from:* [IMutatingFunc](../imutatingfunc-019/index.html)\<[TR](../imutatingfunc-019/index.html#typeparam-TR), [TP](../imutatingfunc-019/index.html#typeparam-TP)\> ## Description Represents an interface for a mutating function that can take multiple differentiable parameters. The function allows to modify the state of the object it belongs to and supports differentiation. ## Generic Parameters #### TR: [IDifferentiable](../idifferentiable-01/index.html) #### TP: [IDifferentiable](../idifferentiable-01/index.html) ## Methods * [operator\(\)](operatorx28x29)