Vips.Image.math

### Method

# Vips Imagemath

#### Declaration [src]

    int
    vips_math (
      VipsImage* in,
      VipsImage** out,
      VipsOperationMath math,
      ...
    )

#### Description [src]

Perform various functions in -lm, the maths library, on images.

Angles are expressed in degrees. The output type is float unless the input is double, in which case the output is double.

Non-complex images only.

See also

`vips_math2()`.

This method is not directly available to language bindings.

#### Parameters

`out`

  Type: `VipsImage`

  Output `VipsImage`.

  The argument will be set by the function.
  The caller of the method takes ownership of the returned data, and is responsible for freeing it.

`math`

  Type: `VipsOperationMath`

  Math operation to perform.

`...`

  Type: ``

  `NULL`-terminated list of optional named arguments.

#### Return value

Type: `int`

0 on success, -1 on error.