---
name: "FcMatrixScale"
section: "3"
platform: "linux"
package: "fontconfig"
version: "2:2.18.3-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/FcMatrixScale"
---

# FcMatrixScale(3)

Scale a matrix

## NAME

FcMatrixScale - Scale a matrix

## SYNOPSIS

**#include \<fontconfig/fontconfig.h\>**

**void FcMatrixScale (FcMatrix \****matrix***, double** *sx***, double** *dy***);**

## DESCRIPTION

**FcMatrixScale** multiplies *matrix* x values by *sx* and y values by *dy*.  This is done by multiplying by the matrix:

```
   sx  0
   0   dy
```