# planarTensor(tensor:name:) Returns a real-valued tensor from a complex-valued tensor with real and imaginary planes separated. ``` func planarTensor(tensor: MPSGraphTensor, name: String?) -> MPSGraphTensor ``` ## Parameters `tensor` The input tensor. `name` An optional string which serves as an identifier for the operation.. ## Return Value A valid `MPSGraphTensor` object containing the elementwise result of the applied operation. ## Discussion Creates a complexToPlanar operation and returns the result tensor. In case the input tensor is a complex tensor the result tensor is twice as wide as the input tensor in the last dimension, and its datatype will be the underlying datatype of the input tensor - for example `<3xcomplex>` becomes `<6xf16>`. In case the input is not complex-valued, this op simply returns the input tensor. For complex input: ```md { resultTensor[...,i] = realPart(inputTensor[...,i]) { resultTensor[...,i+DimSize(inputTensor,-1)] = imagPart(inputTensor[...,i]) ``` For real-valued input: ```md resultTensor = inputTensor ``` --- 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)