CMULT

Multiplies an NDF by a scalar

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

cmult in scalar out

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

Output NDF structure.

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

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

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.

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.
Huge NDFs are supported.