SIMPLORER User Manual V6.0 - FER-a

A
532 Appendix
Predefined Constants
The simulator provides natural and mathematical constants that can be used in mathematical
expressions within component dialogs or SML descriptions. The following table shows the
available constants and their corresponding symbols:
Symbol Value Unit Description Variable
π 3.141592654 [/] PI MATH_PI
E 2.718281828 [/] Euler number MATH_E
ε0 8.85419 10-12 C²•Jm Permittivity of vacuum PHYS_E0
µ 0 1.25664 10 -06
T²m³/J Permeability of vacuum PHYS_MU0
kB 1.38066 10-23 J/K Boltzmann constant PHYS_K
e 1.60217733 10 -19
C Elementary charge PHYS_Q
c 299 792 458 m/s Speed of light PHYS_C
g 9.80665 m/s² Acceleration due to gravity PHYS_G
h 6.6260755 10-34 Js Planck constant PHYS_H
ϑ -273.15 °C Absolute Zero PHYS_T0
Equations, Expressions, and Variables
Equations consist of operands and operators. An operand can be any number or variable
name. An operator compares or assigns a value. In expressions you can create and use variables
as often as you want. A variable is defined when the variable name is used in an expression
or for a parameter value within a component dialog. You do not need to define the
variable in a specific assignment unless you want it to have a defined initial value.
Z:=Y+X; X,Y, and Z are the operands, and := and + are the operators.
If the operants are complex numbers (for example in an AC simulation), the comparison operators
(, =) consider only the real part.
Assignment operators := Assignment
## Delay operator combined with the action type
DEL
Arithmetic operators * Multiplication
/ Division
+ Addition
– Subtraction
Comparison operators < Less than
without synchronization
>
or ><
Greater than
Not equal to
Comparison operators
with synchronization
This operator type forces the simulator to synchronize on the condition
with the minimum step width.
= or => Greater than or equal to
= Equal to