---
title: "encodeGradientSequence(commandBuffer:forwardSources:sourceGradients:destinationGradients:weightGradients:trainingStates:weights:)"
framework: metalperformanceshaders
role: symbol
role_heading: Instance Method
path: "metalperformanceshaders/mpsrnnmatrixtraininglayer/encodegradientsequence(commandbuffer:forwardsources:sourcegradients:destinationgradients:weightgradients:trainingstates:weights:)"
---

# encodeGradientSequence(commandBuffer:forwardSources:sourceGradients:destinationGradients:weightGradients:trainingStates:weights:)

## Declaration

```swift
func encodeGradientSequence(commandBuffer: any MTLCommandBuffer, forwardSources: [MPSMatrix], sourceGradients: [MPSMatrix], destinationGradients: [MPSMatrix]?, weightGradients: [MPSMatrix]?, trainingStates: [MPSRNNMatrixTrainingState], weights: [MPSMatrix])
```