DanilaFe/Abacus
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Code Issues Releases Wiki Activity

Add comments to the newly defined static functions.

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This commit is contained in:
Danila Fedorin 2017-07-30 21:15:01 -07:00
parent e7ad733c81
commit f400f9f464
1 changed files with 30 additions and 0 deletions
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30
src/main/java/org/nwapw/abacus/plugin/StandardPlugin.java
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@ -16,6 +16,9 @@ import java.util.function.BiFunction;
*/ */
public class StandardPlugin extends Plugin { public class StandardPlugin extends Plugin {
/**
* The addition operator, +
*/
public static final Operator OP_ADD = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 0, new Function() { public static final Operator OP_ADD = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 0, new Function() {
@Override @Override
protected boolean matchesParams(NumberInterface[] params) { protected boolean matchesParams(NumberInterface[] params) {
@ -31,6 +34,9 @@ public class StandardPlugin extends Plugin {
return sum; return sum;
} }
}); });
/**
* The subtraction operator, -
*/
public static final Operator OP_SUBTRACT = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 0, new Function() { public static final Operator OP_SUBTRACT = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 0, new Function() {
@Override @Override
protected boolean matchesParams(NumberInterface[] params) { protected boolean matchesParams(NumberInterface[] params) {
@ -42,6 +48,9 @@ public class StandardPlugin extends Plugin {
return params[0].subtract(params[1]); return params[0].subtract(params[1]);
} }
}); });
/**
* The multiplication operator, *
*/
public static final Operator OP_MULTIPLY = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 1, new Function() { public static final Operator OP_MULTIPLY = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 1, new Function() {
@Override @Override
protected boolean matchesParams(NumberInterface[] params) { protected boolean matchesParams(NumberInterface[] params) {
@ -57,6 +66,9 @@ public class StandardPlugin extends Plugin {
return product; return product;
} }
}); });
/**
* The division operator, /
*/
public static final Operator OP_DIVIDE = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 1, new Function() { public static final Operator OP_DIVIDE = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 1, new Function() {
@Override @Override
protected boolean matchesParams(NumberInterface[] params) { protected boolean matchesParams(NumberInterface[] params) {
@ -72,6 +84,9 @@ public class StandardPlugin extends Plugin {
return product; return product;
} }
}); });
/**
* The factorial operator, !
*/
public static final Operator OP_FACTORIAL = new Operator(OperatorAssociativity.RIGHT, OperatorType.UNARY_POSTFIX, 0, new Function() { public static final Operator OP_FACTORIAL = new Operator(OperatorAssociativity.RIGHT, OperatorType.UNARY_POSTFIX, 0, new Function() {
//private HashMap<Class<? extends NumberInterface>, ArrayList<NumberInterface>> storedList = new HashMap<Class<? extends NumberInterface>, ArrayList<NumberInterface>>(); //private HashMap<Class<? extends NumberInterface>, ArrayList<NumberInterface>> storedList = new HashMap<Class<? extends NumberInterface>, ArrayList<NumberInterface>>();
@Override @Override
@ -98,6 +113,9 @@ public class StandardPlugin extends Plugin {
}*/ }*/
} }
}); });
/**
* The caret / pow operator, ^
*/
public static final Operator OP_CARET = new Operator(OperatorAssociativity.RIGHT, OperatorType.BINARY_INFIX, 2, new Function() { public static final Operator OP_CARET = new Operator(OperatorAssociativity.RIGHT, OperatorType.BINARY_INFIX, 2, new Function() {
@Override @Override
protected boolean matchesParams(NumberInterface[] params) { protected boolean matchesParams(NumberInterface[] params) {
@ -109,6 +127,9 @@ public class StandardPlugin extends Plugin {
return FUNCTION_EXP.apply(FUNCTION_LN.apply(params[0]).multiply(params[1])); return FUNCTION_EXP.apply(FUNCTION_LN.apply(params[0]).multiply(params[1]));
} }
}); });
/**
* The absolute value function, abs(-3) = 3
*/
public static final Function FUNCTION_ABS = new Function() { public static final Function FUNCTION_ABS = new Function() {
@Override @Override
protected boolean matchesParams(NumberInterface[] params) { protected boolean matchesParams(NumberInterface[] params) {
@ -120,6 +141,9 @@ public class StandardPlugin extends Plugin {
return params[0].multiply((new NaiveNumber(params[0].signum())).promoteTo(params[0].getClass())); return params[0].multiply((new NaiveNumber(params[0].signum())).promoteTo(params[0].getClass()));
} }
}; };
/**
* The exponentiation function, exp(1) = e^1 = 2.71
*/
public static final Function FUNCTION_EXP = new Function() { public static final Function FUNCTION_EXP = new Function() {
@Override @Override
protected boolean matchesParams(NumberInterface[] params) { protected boolean matchesParams(NumberInterface[] params) {
@ -137,6 +161,9 @@ public class StandardPlugin extends Plugin {
return sum; return sum;
} }
}; };
/**
* The natural log function, ln(exp(1)) = 1
*/
public static final Function FUNCTION_LN = new Function() { public static final Function FUNCTION_LN = new Function() {
@Override @Override
protected boolean matchesParams(NumberInterface[] params) { protected boolean matchesParams(NumberInterface[] params) {
@ -210,6 +237,9 @@ public class StandardPlugin extends Plugin {
return sum; return sum;
} }
}; };
/**
* The square root function, sqrt(4) = 2
*/
public static final Function FUNCTION_SQRT = new Function() { public static final Function FUNCTION_SQRT = new Function() {
@Override @Override
protected boolean matchesParams(NumberInterface[] params) { protected boolean matchesParams(NumberInterface[] params) {