1 Introduction
A number of arithmetic expressions are supported, all of which work on numeric types (Integer/Long, and Decimal).
2 Multiplication
Multiplies two numbers.
2.1 Input parameters
- First number Type: Integer/Long, Decimal
- Second number Type: Integer/Long, Decimal
2.2 Output
If the two inputs are both of type Integer/Long, the result is of type Integer/Long.
If any of the two inputs is of type Decimal, the result is of type Decimal.
3 Division
Divides two numbers. You can use either the div or colon ( : ) syntax, as can be seen below in the examples. The colon ( : ) syntax is inspired by the divide symbol รท. We cannot use the more conventional slash ( / ) syntax because that would conflict with the slash we use for separating objects and members.
3.1 Input Parameters
- First number Type: Integer/Long, Decimal
- Second number Type: Integer/Long, Decimal
3.2 Output
If any of the two inputs is of type Decimal, the result is of type Decimal.
div syntax:
3 div 5
results in:
0.6
: syntax:
12 : 3
results in:
4.0
3.3 Warning
The result of a division is only an approximation if it has an infinite decimal expansion. For example:
3 : 7
results in:
0.4285714285714285714285714285714286
The consequence of this is that if you continue a calculation with the results of a division, the results might be unexpected. For example:
(3 : 7) * 7
results in:
3.0000000000000000000000000000000002
and:
ceil((3 : 7) * 7)
in:
4
It is therefore recommended to do division operations last.
4 Modulo
Calculates the remainder of the division of one number by another. In other words, m modulo n corresponds to: m = p + k*n, where p is the result of the operation m modulo n.
4.1 Input Parameters
- First number Type: Integer/Long, Decimal
- Second number Type: Integer/Long, Decimal
4.2 Output
If the two inputs are both of type Integer/Long, the result is of type Integer/Long.
If any of the two inputs is of type Decimal, the result is of type Decimal.
23 mod 5
results in an Integer/Long with value:
3
5 Addition
Adds two numbers.
For more information, see String function calls.
5.1 Input Parameters
- First number Type: Integer/Long, Decimal
- Second number Type: Integer/Long, Decimal
5.2 Output
If the two inputs are both of type Integer/Long, the result is of type Integer/Long.
If any of the two inputs is of type Decimal, the result is of type Decimal.
-3 + 4
results in an Integer/Long with value:
1
6 Subtraction
Subtracts the second input from the first.
6.1 Input Parameters
- First number Type: Integer/Long, Decimal
- Second number Type: Integer/Long, Decimal
6.2 Output
If the two inputs are both of type Integer/Long, the result is of type Integer/Long.
If any of the two inputs is of type Decimal, the result is of type Decimal.
5 - 4
results in an Integer/Long with value:
1