# 4. Data types

This chapter explains all data types of SINGULAR in alphabetical order. For every type, there is a description of the declaration syntax as well as information about how to build expressions of certain types.

The term expression list in SINGULAR refers to any comma separated list of expressions.

For the general syntax of a declaration see General command syntax.

> 4.1 cring |  |
> 4.2 bigint |  |
> 4.3 bigintmat |  |
> 4.4 bigintvec |  |
> 4.5 def |  |
> 4.6 ideal |  |
> 4.7 int |  |
> 4.8 intmat |  |
> 4.9 intvec |  |
> 4.10 link |  |
> 4.11 list |  |
> 4.12 map |  |
> 4.13 matrix |  |
> 4.14 module |  |
> 4.15 number |  |
> 4.16 package |  |
> 4.17 poly |  |
> 4.18 proc |  |
> 4.19 resolution |  |
> 4.20 ring |  |
> 4.21 smatrix |  |
> 4.22 string |  |
> 4.23 vector |  |
> 4.24 User defined types |  |
> 4.25 cone |  |
> 4.26 fan |  |
> 4.27 polytope |  |
> 4.28 pyobject |  |
> 4.29 reference and shared (experimental) |  |

User manual for Singular version 4.4.1, 2025, generated by texi2html.