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## B Algebraic Functions

This appendix lists the functions which can be used in algebraic expressions (see Section 7). They are listed in two sections: the first gives the functions available for use anywhere an expression can be used, and the second gives those only for use in defining custom Activation Actions.

Note that although all the available functions are listed here with short descriptions, their full explanation, including parameter descriptions and examples, is only available from the Available Functions Window, obtained using the toolbar button.

- B.1 General Functions

- B.1.1 Strings
- B.1.2 Tilings
- B.1.3 Fluxes
- B.1.4 Distances
- B.1.5 Times
- B.1.6 Arrays
- B.1.7 Arithmetic
- B.1.8 TrigDegrees
- B.1.9 KCorrections
- B.1.10 Lists
- B.1.11 Coverage
- B.1.12 CoordsRadians
- B.1.13 Conversions
- B.1.14 CoordsDegrees
- B.1.15 Maths
- B.1.16 Formats

- B.2 Activation Functions

- B.2.1 BasicImageDisplay
- B.2.2 Browsers
- B.2.3 Image
- B.2.4 Mgc
- B.2.5 Output
- B.2.6 Sdss
- B.2.7 SuperCosmos
- B.2.8 System
- B.2.9 TwoQZ

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TOPCAT - Tool for OPerations on Catalogues And Tables
Starlink User Note253
TOPCAT web page: http://www.starlink.ac.uk/topcat/
Author email: m.b.taylor@bristol.ac.uk
Mailing list: topcat-user@jiscmail.ac.uk