8. Formulas
Formulas (generic)
Description
According to the arithmetical algebra it is necessary: point operations (multiplication, division) will be executed before stroke operations (addition, subtraction). And according to the boolean algebra is necessary: AND will be executed before OR. A combination of these laws forms the priorities of the operators. If a formula contain multiple partial calculations then they are calculated in the order that result from their priorities. If more than one partial calculation have the same priority then they are calculated from left to right. Leading signs (plus, minus, NOT) have always the highest priority.
x = 15 + 3 * 9
x = 15 + 21
x = 36
In this example the point operation (3 * 9) has been calculated before the stroke operation (which whould be 15 + 3) was calculated.
List of the priorities
In the following list applies: the higher the number the higher the priority.
Operator | Priority |
AND operation | 4 |
OR operation | 3 |
XOR operation | 3 |
Modulo | 2 |
Division | 2 |
Multiplication | 2 |
Subtraction | 1 |
Addition | 1 |
Example
The following example uses the signs of DestinyScript but it is just a calcuation example - it is not a valid DestinyScript.
x = 1000 + 2 - 10 * 3 / 15 % 8 | 3 ^ 7 & 6
x = 1002 - 10 * 3 / 15 % 8 | 3 ^ 7 & 6
x = 1002 - 30 / 15 % 8 | 3 ^ 7 & 6
x = 1002 - 2 % 8 | 3 ^ 7 & 6
x = 1002 - 2 % 11 ^ 7 & 6
x = 1002 - 2 % 11 ^ 6
x = 1002 - 2 % 13
x = 1002 - 2
x = 1000
In this example some lines could have been calculated in a single step, but to make it easier to understand the calculation has been made step-by-step.
Description
If a partial calculation with less priority should be calculated before a partial calculation with high priority then you must put the calculation with less priority in parentheses ( ).
Example
The following example uses the signs of DestinyScript but it is just a calcuation example - it is not a valid DestinyScript.
x = 100 * -(10 + 7)
x = 100 * -17
x = -1700
Information
A sign at the beginning of a pair of parentheses modifies only the result of the calculation in the parentheses.