---
title: vDSP_vintb
framework: accelerate
role: symbol
role_heading: Function
path: accelerate/vdsp_vintb
---

# vDSP_vintb

Calculates the linear interpolation between the supplied single-precision vectors using the specified stride.

## Declaration

```occ
extern void vDSP_vintb(const float *__A, vDSP_Stride __IA, const float *__B, vDSP_Stride __IB, const float *__C, float *__D, vDSP_Stride __ID, vDSP_Length __N);
```

## Parameters

- `__A`: Single-precision real input vector.
- `__IA`: Stride for A.
- `__B`: Single-precision real input vector.
- `__IB`: Stride for B.
- `__C`: Single-precision real input scalar: interpolation constant.
- `__D`: Single-precision real output vector.
- `__ID`: Stride for D.
- `__N`: The number of elements to process.

## Discussion

Discussion This function interpolates between the first N elements of A and B by taking the difference between corresponding elements, multiplying it by the constant C, and adding this to the corresponding element of A; results are left in corresponding elements of D:

## See Also

### Vector-to-Vector Linear Interpolation

- [vDSP_vintbD](accelerate/vdsp_vintbd.md)