CMULT - Multiplies an NDF by a scalar

Description:

This application multiplies each pixel of an NDF  by a scalar (constant) value to produce a new NDF.

Usage:

cmult in scalar out

Parameters:

IN = NDF (Read)

Input NDF structure whose pixels are to be multiplied by a scalar.

OUT = NDF (Write)

Output NDF structure.

SCALAR = _DOUBLE (Read)

The value by which the NDF's pixels are to be multiplied.

TITLE = LITERAL (Read)

A title for the output NDF. A null value will cause the title of the NDF supplied for parameter IN to be used instead. [!]

Examples:

cmult a 12.5 b

Multiplies all the pixels in the NDF called a by the constant value 12.5 to produce a new NDF called b.

cmult in=rawdata out=newdata scalar=-19

Multiplies all the pixels in the NDF called rawdata by $-$ 19 to give newdata.

Related Applications :

KAPPA: ADD, CADD, CDIV, CSUB, DIV, MATHS, MULT, SUB.

Implementation Status:

• This routine correctly processes the AXIS, DATA, QUALITY, LABEL, TITLE, UNITS, HISTORY, WCS, and VARIANCE  components of an NDF data structure and propagates all extensions.

• Processing of bad pixels and automatic quality masking are supported.

• All non-complex numeric data types can be handled. Arithmetic is carried out using the appropriate floating-point type, but the numeric type of the input pixels is preserved in the output NDF.