# 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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