# FISH Type Index

These type specifiers are used in FISH function signatures throughout the FLAC3D documentation.

- ANY
- any type

- ARR
- array

- BOOL
- Boolean

- FLT
- floating-point number

- INDEX
- general index

- INT
- integer number

- LIST
- pointer to a list (or container) of objects

- MAP
- map (associative container)

- MAT
- matrix

- NULL
- null pointer

- NUM
- floating-point or integer number

- PNT
- general pointer

- STR
- string

- TEN
- tensor

- V2
- 2D vector

- V2+
- 2D vector, which can be entered as either a single vector argument or two NUM arguments

- V3
- 3D vector

- V3+
- 3D vector, which can be entered as either a single vector argument or three NUM arguments

- VEC
- 2D or 3D vector

- VEC+
- 2D or 3D vector, which can be entered as either a single vector argument or as two to three NUM arguments

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