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### Fitsy FITS Routines

- Routines to handle complete FITS files. ::fitsfile.html
- Routines to handle FITS images.
- Routines to handle FITS tables.
- Routines to handle FITS headers.
  - Creating the FITSHead data structure.
  - Reading and writing FITS headers.
  - Getting basic values in a header.

    Many of the most basic FITS values are retrieved in when a fits file is scanned in memory or read from disk.

    - Basic values
    - Image values
    - Table values

    These data structures are transfered to and from the FITS header with these routines.

    - Load and store basic and image header values.
    - Load and store table header values.

  - Getting the value of cards in a header.
  - Setting the value of cards in a header.
  - Finding cards in a header
  - Inserting, appending and deleting cards in a header.
- Routines to handle the data portion of a FITS file.
  - Moving to and skipping over the data portion of a FITS HDU.
  - Reading FITS image data
- Low level routines to handle FITS Cards.
  - Parsing values from FITS cards.
  - Formatting FITS cards.
  - Finding cards in a header
  - Inserting, appending and deleting cards in a header.

- Examples
  - Basic header examples.
  - Basic card examples.
  - More examples.

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