Arithmetic Operators summarizes the rules for the precedence and associativity of operators.
|
Operators |
Associativity |
|
( ) |
left to right |
|
* / |
left to right |
|
+ - |
left to right |
Format
|
+ |
Add |
|
- |
Subtract |
|
* |
Multiply |
|
/ |
Divide |
|
** |
Power |
Caution
“division by zero”: If the denominator is exactly ZERO, RecurDyn changes the denominator to 1.e-20.
Example
They are used as general arithmetic symbols. In particular, 2**n, means 2 to the nth power. Also, for ‘/’, if a number is divided by 0, the calculation should be expressed as 1e-20, rather than 0.