Example usage for org.apache.commons.math3.complex Complex negate

Introduction

In this page you can find the example usage for org.apache.commons.math3.complex Complex negate.

Prototype

public Complex negate() 

Source Link

Document

Returns a Complex whose value is (-this) .

Usage

From source file:eu.itesla_project.iidm.ddb.eurostag.model.TransformerModel.java

public StateVariable toSv1(StateVariable sv2) {
    Complex s2 = new Complex(-sv2.p, -sv2.q); // s2=p2+jq2
    Complex u2 = ComplexUtils.polar2Complex(sv2.u, Math.toRadians(sv2.theta));
    Complex v2 = u2.divide(SQUARE_3); // v2=u2/sqrt(3)
    Complex i2 = s2.divide(v2.multiply(3)).conjugate(); // i2=conj(s2/(3*v2))
    Complex v1p = v2.add(z.multiply(i2)); // v1'=v2+z*i2
    Complex i1p = i2.negate().add(y.multiply(v1p)); // i1'=-i2+v1'*y
    Complex i1 = i1p.multiply(ratio); // i1=i1p*ration
    Complex v1 = v1p.divide(ratio); // v1=v1p/ration
    Complex s1 = v1.multiply(3).multiply(i1.conjugate()); // s1=3*v1*conj(i1)
    Complex u1 = v1.multiply(SQUARE_3);/*from w ww.java2  s .  c  o  m*/
    return new StateVariable(-s1.getReal(), -s1.getImaginary(), u1.abs(), Math.toDegrees(u1.getArgument()));
}

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From source file:com.autsia.bracer.BracerParser.java

/**
 * Evaluates once parsed math expression with "var" variable included
 *
 * @param variableValue User-specified <code>Double</code> value
 * @return <code>String</code> representation of the result
 * @throws <code>ParseException</code> if the input expression is not
 *                                     correct
 * @since 3.0/*from www  .  ja v a 2  s . c  o m*/
 */
public String evaluate(double variableValue) throws ParseException {
    /* check if is there something to evaluate */
    if (stackRPN.empty()) {
        return "";
    }

    /* clean answer stack */
    stackAnswer.clear();

    /* get the clone of the RPN stack for further evaluating */
    @SuppressWarnings("unchecked")
    Stack<String> stackRPN = (Stack<String>) this.stackRPN.clone();

    /* enroll the variable value into expression */
    Collections.replaceAll(stackRPN, VARIABLE, Double.toString(variableValue));

    /* evaluating the RPN expression */
    while (!stackRPN.empty()) {
        String token = stackRPN.pop();
        if (isNumber(token)) {
            stackAnswer.push(token);
        } else if (isOperator(token)) {
            Complex a = complexFormat.parse(stackAnswer.pop());
            Complex b = complexFormat.parse(stackAnswer.pop());
            boolean aBoolean = a.getReal() == 1.0;
            boolean bBoolean = b.getReal() == 1.0;
            switch (token) {
            case "+":
                stackAnswer.push(complexFormat.format(b.add(a)));
                break;
            case "-":
                stackAnswer.push(complexFormat.format(b.subtract(a)));
                break;
            case "*":
                stackAnswer.push(complexFormat.format(b.multiply(a)));
                break;
            case "/":
                stackAnswer.push(complexFormat.format(b.divide(a)));
                break;
            case "|":
                stackAnswer.push(String.valueOf(aBoolean || bBoolean ? "1" : "0"));
                break;
            case "&":
                stackAnswer.push(String.valueOf(aBoolean && bBoolean ? "1" : "0"));
                break;
            }
        } else if (isFunction(token)) {
            Complex a = complexFormat.parse(stackAnswer.pop());
            boolean aBoolean = a.getReal() == 1.0;
            switch (token) {
            case "abs":
                stackAnswer.push(complexFormat.format(a.abs()));
                break;
            case "acos":
                stackAnswer.push(complexFormat.format(a.acos()));
                break;
            case "arg":
                stackAnswer.push(complexFormat.format(a.getArgument()));
                break;
            case "asin":
                stackAnswer.push(complexFormat.format(a.asin()));
                break;
            case "atan":
                stackAnswer.push(complexFormat.format(a.atan()));
                break;
            case "conj":
                stackAnswer.push(complexFormat.format(a.conjugate()));
                break;
            case "cos":
                stackAnswer.push(complexFormat.format(a.cos()));
                break;
            case "cosh":
                stackAnswer.push(complexFormat.format(a.cosh()));
                break;
            case "exp":
                stackAnswer.push(complexFormat.format(a.exp()));
                break;
            case "imag":
                stackAnswer.push(complexFormat.format(a.getImaginary()));
                break;
            case "log":
                stackAnswer.push(complexFormat.format(a.log()));
                break;
            case "neg":
                stackAnswer.push(complexFormat.format(a.negate()));
                break;
            case "real":
                stackAnswer.push(complexFormat.format(a.getReal()));
                break;
            case "sin":
                stackAnswer.push(complexFormat.format(a.sin()));
                break;
            case "sinh":
                stackAnswer.push(complexFormat.format(a.sinh()));
                break;
            case "sqrt":
                stackAnswer.push(complexFormat.format(a.sqrt()));
                break;
            case "tan":
                stackAnswer.push(complexFormat.format(a.tan()));
                break;
            case "tanh":
                stackAnswer.push(complexFormat.format(a.tanh()));
                break;
            case "pow":
                Complex b = complexFormat.parse(stackAnswer.pop());
                stackAnswer.push(complexFormat.format(b.pow(a)));
                break;
            case "not":
                stackAnswer.push(String.valueOf(!aBoolean ? "1" : "0"));
                break;
            }
        }
    }

    if (stackAnswer.size() > 1) {
        throw new ParseException("Some operator is missing", 0);
    }

    return stackAnswer.pop();
}

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From source file:com.calc.BracerParser.java

/**
 * Evaluates once parsed math expression with "var" variable included
 *
 * @param variableValue User-specified <code>Double</code> value
 * @return <code>String</code> representation of the result
 * @throws <code>ParseException</code> if the input expression is not
 *                                     correct
 * @since 3.0//from w  ww. java  2s .  c o  m
 */
public String evaluate(double variableValue) throws ParseException {
    /* check if is there something to evaluate */
    if (stackRPN.empty()) {
        return "";
    }

    /* clean answer stack */
    stackAnswer.clear();

    /* get the clone of the RPN stack for further evaluating */
    @SuppressWarnings("unchecked")
    Stack<String> stackRPN = (Stack<String>) this.stackRPN.clone();

    /* enroll the variable value into expression */
    Collections.replaceAll(stackRPN, VARIABLE, Double.toString(variableValue));

    /* evaluating the RPN expression */
    while (!stackRPN.empty()) {
        String token = stackRPN.pop();
        if (isNumber(token)) {
            stackAnswer.push(token);
        } else if (isOperator(token)) {
            Complex a = complexFormat.parse(stackAnswer.pop());
            Complex b = complexFormat.parse(stackAnswer.pop());
            boolean aBoolean = a.getReal() == 1.0;
            boolean bBoolean = b.getReal() == 1.0;
            switch (token) {
            case "+":
                stackAnswer.push(complexFormat.format(b.add(a)));
                break;
            case "-":
                stackAnswer.push(complexFormat.format(b.subtract(a)));
                break;
            case "*":
                stackAnswer.push(complexFormat.format(b.multiply(a)));
                break;
            case "/":
                stackAnswer.push(complexFormat.format(b.divide(a)));
                break;
            case "|":
                stackAnswer.push(String.valueOf(aBoolean || bBoolean ? "1" : "0"));
                break;
            case "&":
                stackAnswer.push(String.valueOf(aBoolean && bBoolean ? "1" : "0"));
                break;
            }
        } else if (isFunction(token)) {
            Complex a = complexFormat.parse(stackAnswer.pop());
            boolean aBoolean = a.getReal() == 1.0;
            switch (token) {
            case "fat":
                stackAnswer.push(complexFormat.format(a.abs()));
                break;
            case "fib":
                stackAnswer.push(complexFormat.format(a.acos()));
                break;
            case "arg":
                stackAnswer.push(complexFormat.format(a.getArgument()));
                break;
            case "asin":
                stackAnswer.push(complexFormat.format(a.asin()));
                break;
            case "atan":
                stackAnswer.push(complexFormat.format(a.atan()));
                break;
            case "conj":
                stackAnswer.push(complexFormat.format(a.conjugate()));
                break;
            case "cos":
                stackAnswer.push(complexFormat.format(a.cos()));
                break;
            case "cosh":
                stackAnswer.push(complexFormat.format(a.cosh()));
                break;
            case "exp":
                stackAnswer.push(complexFormat.format(a.exp()));
                break;
            case "imag":
                stackAnswer.push(complexFormat.format(a.getImaginary()));
                break;
            case "log":
                stackAnswer.push(complexFormat.format(a.log()));
                break;
            case "neg":
                stackAnswer.push(complexFormat.format(a.negate()));
                break;
            case "real":
                stackAnswer.push(complexFormat.format(a.getReal()));
                break;
            case "sin":
                stackAnswer.push(complexFormat.format(a.sin()));
                break;
            case "sinh":
                stackAnswer.push(complexFormat.format(a.sinh()));
                break;
            case "sqrt":
                stackAnswer.push(complexFormat.format(a.sqrt()));
                break;
            case "tan":
                stackAnswer.push(complexFormat.format(a.tan()));
                break;
            case "tanh":
                stackAnswer.push(complexFormat.format(a.tanh()));
                break;
            case "pow":
                Complex b = complexFormat.parse(stackAnswer.pop());
                stackAnswer.push(complexFormat.format(b.pow(a)));
                break;
            case "not":
                stackAnswer.push(String.valueOf(!aBoolean ? "1" : "0"));
                break;
            }
        }
    }

    if (stackAnswer.size() > 1) {
        throw new ParseException("Some operator is missing", 0);
    }

    return stackAnswer.pop();
}

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