High-Level Data Reduction Library: hdrl_utils_catalogue

High-Level Data Reduction Library 1.6.0 High-Level data reduction routines for ESO pipelines

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Functions
hdrl_utils_catalogue
Catalogue

Common functions. More...

Collaboration diagram for hdrl_utils_catalogue:

## Functions
double | fraction (double x, double y, double r_out)
| Fraction of pixel bounded.
void | dchole (double a[IMNUM+1][IMNUM+1], double b[IMNUM+1], cpl_size n)
| Cholesky decomposition of definite symmetric matrix to solve Ax = b.

## Detailed Description

Common functions.

## Function Documentation

## ◆ dchole()

void dchole | ( | double | a[IMNUM+1][IMNUM+1],
|  | double | b[IMNUM+1],
|  | cpl_size | n
| ) |  |

Cholesky decomposition of definite symmetric matrix to solve Ax = b.

Parameters

  a | .
  b | .
  n | .

Description: Cholesky decomposition of definite symmetric matrix to solve Ax = b

## ◆ fraction()

double fraction | ( | double | x,
|  | double | y,
|  | double | r_out
| ) |  |

Fraction of pixel bounded.

Parameters

  x | X Cordinate relative to center
  y | Y Cordinate relative to center
  r_out |

Returns
  fraction of pixel bounded by 0 - r_out

Description: Returns fraction of pixel bounded by 0 - r_out x,y coordinates relative to centre. Uses linear approximation ok if pixel located >>1 away from centre.