---
title: epsilon
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/bnns/rmspropoptimizer/epsilon
---

# epsilon

A term that the optimizer adds to the denominator.

## Declaration

```swift
var epsilon: Float { get set }
```

## See Also

### Inspecting the Properties of an RMSProp Optimizer

- [learningRate](accelerate/bnns/rmspropoptimizer/learningrate.md)
- [alpha](accelerate/bnns/rmspropoptimizer/alpha.md)
- [centered](accelerate/bnns/rmspropoptimizer/centered.md)
- [momentum](accelerate/bnns/rmspropoptimizer/momentum.md)
- [gradientScale](accelerate/bnns/rmspropoptimizer/gradientscale.md)
- [regularizationScale](accelerate/bnns/rmspropoptimizer/regularizationscale.md)
- [gradientBounds](accelerate/bnns/rmspropoptimizer/gradientbounds.md)
- [gradientClipping](accelerate/bnns/rmspropoptimizer/gradientclipping.md)
- [BNNS.GradientClipping](accelerate/bnns/gradientclipping.md)
- [regularizationFunction](accelerate/bnns/rmspropoptimizer/regularizationfunction.md)
- [accumulatorCountMultiplier](accelerate/bnns/rmspropoptimizer/accumulatorcountmultiplier.md)