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DIV - Divides one NDF data structure by another

Description:
The routine divides one NDF  data structure by another pixel-by-pixel to produce a new NDF.

Usage:
div in1 in2 out

Parameters:
IN1 = NDF (Read)
First NDF, to be divided by the second NDF.
IN2 = NDF (Read)
Second NDF, to be divided into the first NDF.
OUT = NDF (Write)
Output NDF to contain the ratio of the two input NDFs.
TITLE = LITERAL (Read)
The title for the output NDF. A null value will cause the title of the NDF supplied for Parameter IN1 to be used instead. [!]

Examples:
div a b c
This divides the NDF called a by the NDF called b, to make the NDF called c. NDF c inherits its title from a.
div out=c in1=a in2=b title="Normalised data"
This divides the NDF called a by the NDF called b, to make the NDF called c. NDF c has the title "Normalised data".

Notes:
If the two input NDFs have different pixel-index bounds, then they will be trimmed to match before being divided. An error will result if they have no pixels in common.

Related Applications :
KAPPA: ADD, CADD, CDIV, CMULT, CSUB, MATHS, MULT, SUB.

Implementation Status:




next up previous 530
Next: DRAWNORTH - Draws arrows parallel to the axes
Up: Specifications of KAPPA applications
Previous: DISPLAY - Displays a one- or two-dimensional NDF

KAPPA --- Kernel Application Package
Starlink User Note 95
Malcolm J. Currie & David S. Berry
2013 February 14
E-mail:starlink@jiscmail.ac.uk

Copyright © 2013 Science and Technology Facilities Council