# matmul(transpose:other:transposeOther:bias:) Adds a matrix-matrix multiplication operation to the current graph. ``` func matmul(transpose: Bool = false, other: some BNNSGraph.Builder.OperationParameter, transposeOther: Bool = false, bias: some BNNSGraph.Builder.OperationParameter) -> BNNSGraph.Builder.Tensor ``` ## Parameters `transpose` A Boolean value that specifies whether the operation transposes `self`. `other` The other tensor to be multiplied. `transposeOther` A Boolean value that specifies whether the operation transposes `other`. `bias` The bias. ## Discussion This function treats `self` as the LHS of the matrix multiply operation. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)