In this tutorial you will learn:
The following Table shows an excerpt from the one that can be found in the Usermanual
| Type | Operator | Example | can operate on |
|---|---|---|---|
| ... | ... |
... |
... |
| Arithmetic | |||
| add | + |
a + b |
Integer, Real, String |
| substract | - |
a - b |
Integer, Real |
| multiply | * |
a * b |
Integer, Real |
| divide | / |
a / b |
Integer, Real |
| power | ^ |
a ^ b |
Integer, Real |
| negate | - |
-a |
Integer, Real |
| Relational | |||
| equal | equal |
a equal b |
Integer, Real |
| not equal | notEqual |
a notEqual b |
Integer, Real |
| greater | greater |
a greater b |
Integer, Real |
| greater or equal | greaterOrEqual |
a greaterOrEqual b |
Integer, Real |
| less | less |
a less b |
Integer, Real |
| less or equal | lessOrEqual |
a lessOrEqual b |
Integer, Real |
| Logic | |||
| and | and |
a and b |
Boolean, Integer, Object |
| or | or |
a or b |
Boolean, Integer, Object |
| xor | xor |
a xor b |
Boolean, Integer, Object |
| not | not |
not a |
Boolean, Integer, Object |
| ... | ... | ... | ... |
Some of the operators will be used next.
In flowScript it is possible to specify mathematical expression that will be evaluated during script execution.
Please start FlowModeler and open the Script-IDE.
Next we will specify some mathematical expressiond and print their result. For example:
print( 10 + 20 + 30 - 5 )
print( 2.5 * 10 )
print( 2^3 )
Operations can be gouped so that a certain part is evaluated before another part of an expression
print( 2 * 1 + 5 )
print( 2 * (1 + 5) )
With relational operators two values can be compared to each other. The operation returns either true or false. For example:
print( 10 greater 9 )
print( 0 lessOrEqual 5 )
print( 1.2 equal 1.3 )
print( 1.2 notEqual 1.3 )
Logic operators can be used to evaluate the logic value of boolean expression like and, or, not and xor. For example:
print( 1 and 0 )
print( 1 and 1 )
print( (10 greater 9) or (1.2 notEqual 1.3) )
The above examples are only a very brief overview of the available operators. For the full list please refer to the Operators table in the Usermanual.
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