--- layout: stdlib-reference --- # matrix\\.dadd ## Description ## Signature

static matrix<T, N, M> matrix<T, R, C>.dadd(
    matrix<T, N, M> a,
    matrix<T, N, M> b)
    where T : IDifferentiable;

## Parameters #### a : [matrix](index.html)\<[T](t-0.html), [N](index.html#decl-N), [M](index.html#decl-M)\> #### b : [matrix](index.html)\<[T](t-0.html), [N](index.html#decl-N), [M](index.html#decl-M)\>