---
title: lambda
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/sparselsmroptions/lambda
---

# lambda

The damping parameter lambda for regularized least squares.

## Declaration

```swift
var lambda: Double
```

## See Also

### Inspecting LSMR Options

- [atol](accelerate/sparselsmroptions/atol.md)
- [btol](accelerate/sparselsmroptions/btol.md)
- [conditionLimit](accelerate/sparselsmroptions/conditionlimit.md)
- [convergenceTest](accelerate/sparselsmroptions/convergencetest.md)
- [SparseLSMRConvergenceTest_t](accelerate/sparselsmrconvergencetest_t.md)
- [maxIterations](accelerate/sparselsmroptions/maxiterations.md)
- [nvec](accelerate/sparselsmroptions/nvec.md)
- [reportError](accelerate/sparselsmroptions/reporterror.md)
- [reportStatus](accelerate/sparselsmroptions/reportstatus.md)
- [rtol](accelerate/sparselsmroptions/rtol.md)