Welcome to 20-sim
What is new in 20-sim?
Requirements
Contact
Privacy Statement
Installation
Quick Tour
Editor
Simulator
Language Reference
- Introduction
- Keywords
- Types
  - Data Types
  - Boolean
  - Integer
  - Real
  - String
  - Typecasting
- Functions
  - Functions
  - Arithmetic
    - abs
    - algebraic
    - ceil
    - constraint
    - ddt
    - derivative
    - dly
    - energyfunction
    - exp
    - exp10
    - exp2
    - floor
    - initialvalue
    - int
    - limint
    - limit
    - log
    - log10
    - log2
    - resint
    - round
    - sign
    - square
    - sqrt
    - tdelay
    - trunc
  - Discrete
    - hold
    - next
    - previous
    - sample
  - Event
    - event
    - eventdown
    - eventup
    - frequencyevent
    - timeevent
  - Expansion
    - equal
    - mul
    - sum
  - External
  - Matrix
    - adjoint
    - Adjoint
    - antisym
    - columns
    - cross
    - det
    - diag
    - eye
    - homogeneous
    - inner
    - inverse
    - inverseH
    - linsolve
    - max
    - min
    - msum
    - multiplyH
    - norm
    - norminf
    - rows
    - skew
    - sym
    - tilde
    - trace
    - transpose
  - Port
    - collect
    - direct
    - first
  - Source
    - gauss
    - impulse
    - ramp
    - ran
      - Random Seed
    - step
  - Trigonometric
    - arcsin
    - arccos
    - arccosh
    - arcsinh
    - arctan
    - arctanh
    - atan2
    - cos
    - cosh
    - sin
    - sinh
    - sincos
    - tanh
    - tan
- Operators
  - Operators
  - Arithmetic
  - Binary
    - bitand
    - bitclear
    - bitcmp
    - bitget
    - bitinv
    - bitor
    - bitset
    - bitshift
    - bitshiftright
    - bitxor
    - swapbytes
  - Boolean
    - and
    - or
    - xor
  - Comparison
  - Prefix
- Statements
- Matrices and Vectors
  - Declaration
  - Notation
  - Use
- Advanced Topics
Toolboxes
Library
Modeling Tutorial

Versions

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Versions

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20-sim is available in two versions: Viewer and Professional.

•	Viewer/Demonstration version: This is a freeware version that allows you to load and run models and evaluate the package. It is not possible to save models in this version.

•	Personal: This version is for home, student and personal education use. Not for commercial, government, academic or other organizational use. This version is limited to models with a maximum of 500 equations and a maximum of 3000 variables.

•	Professional: This is the full version of 20-sim with standard toolboxes.

In addition to the standard toolboxes that come with 20-sim, toolboxes can be purchased. The table below details the options available:

20-sim with standard toolboxes	Viewer	Personal	Professional
Library Models	v*	v	v
Number of Variables	unlimited	< 3000	unlimited
Number of Equations	unlimited	< 500	unlimited
3D Mechanics Toolbox	v*	v	v
Animation Toolbox	v*	v	v
Control Toolbox	v*	v	v
Frequency Domain Toolbox	v*	v	v
Scenario Manager	x	v	v
Mechatronics Toolbox	v*	v	v
Real Time Toolbox	v*	v	v
Time Domain Toolbox	v*	v	v
Scripting Toolbox	x	v	v

Additional toolboxes
20-sim Unity Toolbox	x	x	p

v = included

p = has to be purchased separately

v* = included but no saving possible

x = not available

20-sim is installed, using an Installation Manager that will lock 20-sim to your computer. There are three types of licenses available:

•	Free : The demonstration version comes with a license that is not locked to your computer. No actions have to be taken after installation of the program.

•	Single License: A single license locks 20-sim to a specific computer. After installation you have to register to get a valid license.

•	Floating License: A floating license allows multiple users to work with 20-sim at the same time. After installation you have to register to get a valid license.