---
title: MPSRNNMatrixTrainingState
framework: metalperformanceshaders
role: symbol
role_heading: Class
path: metalperformanceshaders/mpsrnnmatrixtrainingstate
---

# MPSRNNMatrixTrainingState

A class that holds data from a forward pass to be used in a backward pass.

## Declaration

```swift
class MPSRNNMatrixTrainingState
```

## Relationships

### Inherits From

- [MPSState](metalperformanceshaders/mpsstate.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Recurrent Neural Networks

- [MPSRNNImageInferenceLayer](metalperformanceshaders/mpsrnnimageinferencelayer.md)
- [MPSRNNMatrixInferenceLayer](metalperformanceshaders/mpsrnnmatrixinferencelayer.md)
- [MPSRNNSingleGateDescriptor](metalperformanceshaders/mpsrnnsinglegatedescriptor.md)
- [MPSGRUDescriptor](metalperformanceshaders/mpsgrudescriptor.md)
- [MPSLSTMDescriptor](metalperformanceshaders/mpslstmdescriptor.md)
- [MPSRNNSequenceDirection](metalperformanceshaders/mpsrnnsequencedirection.md)
- [MPSRNNMatrixTrainingLayer](metalperformanceshaders/mpsrnnmatrixtraininglayer.md)