<!--
{
  "availability" : [
    "*: -",
    "iOS: 14.0.0 -",
    "iPadOS: 14.0.0 -",
    "macCatalyst: -",
    "macOS: 11.0.0 -",
    "tvOS: 14.0.0 -",
    "visionOS: -",
    "watchOS: 7.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Accelerate",
  "identifier" : "/documentation/Accelerate/BNNSOptimizer/step(parameters:gradients:accumulators:filterParameters:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "Accelerate"
    ],
    "preciseIdentifier" : "s:10Accelerate13BNNSOptimizerP4step10parameters9gradients12accumulators16filterParametersySaySo21BNNSNDArrayDescriptoraG_A2KSo010BNNSFilterH0aSgtKF"
  },
  "title" : "step(parameters:gradients:accumulators:filterParameters:)"
}
-->

# step(parameters:gradients:accumulators:filterParameters:)

```
func step(parameters: [BNNSNDArrayDescriptor], gradients: [BNNSNDArrayDescriptor], accumulators: [BNNSNDArrayDescriptor], filterParameters: BNNSFilterParameters?) throws
```

---

Copyright &copy; 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)