WarpPI/src/main/resources/rules/functions/Power.java

53 lines
1.7 KiB
Java

// Imports
var ObjectArrayList = Java.type("it.unimi.dsi.fastutil.objects.ObjectArrayList");
var ScriptUtils = org.warp.picalculator.ScriptUtils;
var Rule = org.warp.picalculator.math.rules.Rule;
var RuleType = org.warp.picalculator.math.rules.RuleType;
var RulesManager = org.warp.picalculator.math.rules.RulesManager;
var Multiplication = org.warp.picalculator.math.functions.Multiplication;
var Sum = org.warp.picalculator.math.functions.Sum;
var Subtraction = org.warp.picalculator.math.functions.Subtraction;
var SumSubtraction = org.warp.picalculator.math.functions.SumSubtraction;
var Number = org.warp.picalculator.math.functions.Number;
var Division = org.warp.picalculator.math.functions.Division;
var Power = org.warp.picalculator.math.functions.Power;
/**
* Power
* a^b = c
*
* @author Andrea Cavalli
*
*/
var rule = {
// Rule name
getRuleName: function() {
return "Power";
},
// Rule type
getRuleType: function() {
return RuleType.CALCULATION;
},
/* Rule function
Returns:
- null if it's not executable on the function "f"
- An ObjectArrayList<Function> if it did something
*/
execute: function(f) {
if (ScriptUtils.instanceOf(f, Power.class)) {
var result = new ObjectArrayList();
var variable1 = f.getParameter1();
var variable2 = f.getParameter2();
var mathContext = f.getMathContext();
if (ScriptUtils.instanceOf(variable1, Number.class) && ScriptUtils.instanceOf(variable2, Number.class)) {
//a^b = c
result.add(variable1.pow(variable2));
return result;
}
}
return null;
}
}
//Add this rule to the list of rules
RulesManager.addRule(engine.getInterface(rule, Rule.class));