Examples with WrongArgumentType org.matheclipse.core.eval.exception.WrongArgumentType used on opensource projects

Example 31 with WrongArgumentType

use of org.matheclipse.core.eval.exception.WrongArgumentType in project symja_android_library by axkr.

the class AST2Expr method convertNode.

/**
	 * Converts a parsed ASTNode expression into an IExpr expression
	 * 
	 * @param engine
	 *            TODO
	 */
private IExpr convertNode(ASTNode node, EvalEngine engine) throws ConversionException {
    if (node == null) {
        return null;
    }
    if (node instanceof FunctionNode) {
        final FunctionNode functionNode = (FunctionNode) node;
        int size = functionNode.size();
        IAST ast;
        switch(size) {
            case 1:
                ast = F.headAST0(convertNode(functionNode.get(0), engine));
                break;
            case 2:
                ast = F.unaryAST1(convertNode(functionNode.get(0), engine), convertNode(functionNode.get(1), engine));
                break;
            case 3:
                ast = F.binaryAST2(convertNode(functionNode.get(0), engine), convertNode(functionNode.get(1), engine), convertNode(functionNode.get(2), engine));
                break;
            case 4:
                ast = F.ternaryAST3(convertNode(functionNode.get(0), engine), convertNode(functionNode.get(1), engine), convertNode(functionNode.get(2), engine), convertNode(functionNode.get(3), engine));
                break;
            default:
                ast = F.ast(convertNode(functionNode.get(0), engine), functionNode.size(), false);
                for (int i = 1; i < functionNode.size(); i++) {
                    ast.append(convertNode(functionNode.get(i), engine));
                }
        }
        IExpr head = ast.head();
        if (ast.isAST(F.N, 3)) {
            try {
                int precision = Validate.checkIntType(ast.arg2());
                if (EvalEngine.isApfloat(precision)) {
                    fPrecision = precision;
                    ast.set(1, convertNode(functionNode.get(1), engine));
                }
                return ast;
            } catch (WrongArgumentType wat) {
            }
        } else if (ast.isAST(F.Sqrt, 2)) {
            // rewrite from input: Sqrt(x) => Power(x, 1/2)
            return F.Power(ast.arg1(), F.C1D2);
        } else if (ast.isAST(F.Exp, 2)) {
            // rewrite from input: Exp(x) => E^x
            return F.Power(F.E, ast.arg1());
        } else if (ast.isPower() && ast.arg1().isPower() && ast.arg2().isMinusOne()) {
            IAST arg1 = (IAST) ast.arg1();
            if (arg1.arg2().isNumber()) {
                // Power(x, - <number>)
                return F.Power(arg1.arg1(), ((INumber) arg1.arg2()).negate());
            }
        } else if (ast.isASTSizeGE(F.GreaterEqual, 3)) {
            ISymbol compareHead = F.Greater;
            return rewriteLessGreaterAST(ast, compareHead);
        } else if (ast.isASTSizeGE(F.Greater, 3)) {
            ISymbol compareHead = F.GreaterEqual;
            return rewriteLessGreaterAST(ast, compareHead);
        } else if (ast.isASTSizeGE(F.LessEqual, 3)) {
            ISymbol compareHead = F.Less;
            return rewriteLessGreaterAST(ast, compareHead);
        } else if (ast.isASTSizeGE(F.Less, 3)) {
            ISymbol compareHead = F.LessEqual;
            return rewriteLessGreaterAST(ast, compareHead);
        } else if (head.equals(F.PatternHead)) {
            final IExpr expr = Pattern.CONST.evaluate(ast, engine);
            if (expr.isPresent()) {
                return expr;
            }
        } else if (head.equals(F.BlankHead)) {
            final IExpr expr = Blank.CONST.evaluate(ast, engine);
            if (expr.isPresent()) {
                return expr;
            }
        } else if (head.equals(F.Complex)) {
            final IExpr expr = Arithmetic.CONST_COMPLEX.evaluate(ast, engine);
            if (expr.isPresent()) {
                return expr;
            }
        } else if (head.equals(F.Rational)) {
            final IExpr expr = Arithmetic.CONST_RATIONAL.evaluate(ast, engine);
            if (expr.isPresent()) {
                return expr;
            }
        }
        return ast;
    }
    if (node instanceof SymbolNode) {
        String nodeStr = node.getString();
        return convertSymbol(nodeStr, engine);
    }
    // PatternNode
    if (node instanceof Pattern3Node) {
        final Pattern3Node p3n = (Pattern3Node) node;
        SymbolNode sn = p3n.getSymbol();
        return F.$ps((ISymbol) convertNode(sn, engine), convertNode(p3n.getConstraint(), engine), p3n.isDefault(), true);
    }
    if (node instanceof Pattern2Node) {
        final Pattern2Node p2n = (Pattern2Node) node;
        SymbolNode sn = p2n.getSymbol();
        return F.$ps((ISymbol) convertNode(sn, engine), convertNode(p2n.getConstraint(), engine), p2n.isDefault(), false);
    }
    if (node instanceof PatternNode) {
        final PatternNode pn = (PatternNode) node;
        SymbolNode sn = pn.getSymbol();
        if (sn == null) {
            // TODO ,
            return F.$b(convertNode(pn.getConstraint(), engine));
        // p2n.isDefault());
        }
        ASTNode defaultValue = pn.getDefaultValue();
        if (defaultValue != null) {
            return F.$p((ISymbol) convertNode(pn.getSymbol(), engine), convertNode(pn.getConstraint(), engine), convertNode(defaultValue, engine));
        }
        return F.$p((ISymbol) convertNode(pn.getSymbol(), engine), convertNode(pn.getConstraint(), engine), pn.isDefault());
    }
    if (node instanceof IntegerNode) {
        final IntegerNode integerNode = (IntegerNode) node;
        final String iStr = integerNode.getString();
        if (iStr != null) {
            return F.integer(iStr, integerNode.getNumberFormat());
        }
        return F.integer(integerNode.getIntValue());
    }
    if (node instanceof FractionNode) {
        FractionNode fr = (FractionNode) node;
        IInteger numerator = (IInteger) convertNode(fr.getNumerator(), engine);
        IInteger denominator = (IInteger) convertNode(fr.getDenominator(), engine);
        if (denominator.isZero()) {
            return F.Rational(fr.isSign() ? numerator.negate() : numerator, denominator);
        }
        return F.Rational(fr.isSign() ? numerator.negate() : numerator, denominator);
    // return F.fraction(numerator, fr.isSign() ? (IInteger) denominator.negate() : denominator);
    }
    if (node instanceof StringNode) {
        return F.$str(node.getString());
    }
    if (node instanceof FloatNode) {
        String nStr = node.getString();
        String floatStr = nStr;
        int index = nStr.indexOf("*^");
        int exponent = 1;
        if (index > 0) {
            floatStr = nStr.substring(0, index);
            exponent = Integer.parseInt(nStr.substring(index + 2));
        }
        if (EvalEngine.isApfloat(fPrecision)) {
            Apfloat apfloatValue = new Apfloat(floatStr, fPrecision);
            if (exponent != 1) {
                // value * 10 ^ exponent
                return F.num(apfloatValue.multiply(ApfloatMath.pow(new Apint(10), new Apint(exponent))));
            }
            return F.num(apfloatValue);
        }
        double doubleValue = Double.parseDouble(floatStr);
        if (exponent != 1) {
            // value * 10 ^ exponent
            return F.num(doubleValue * Math.pow(10, exponent));
        }
        return F.num(doubleValue);
    }
    if (node instanceof DoubleNode) {
        return F.num(((DoubleNode) node).doubleValue());
    }
    return F.userSymbol(node.toString(), engine);
}

Example 32 with WrongArgumentType

use of org.matheclipse.core.eval.exception.WrongArgumentType in project symja_android_library by axkr.

the class Expr2LP method expr2Constraint.

public LinearConstraint expr2Constraint() {
    double[] coefficients = new double[fVariables.size()];
    if (fExpr.isAST()) {
        IAST ast = (IAST) fExpr;
        if (ast.isAST(F.Equal, 3)) {
            IExpr expr = F.eval(F.Subtract(ast.arg1(), ast.arg2()));
            ISignedNumber num = expr2ObjectiveFunction(expr, coefficients);
            if (num == null) {
                return new LinearConstraint(coefficients, Relationship.EQ, 0);
            }
            return new LinearConstraint(coefficients, Relationship.EQ, -1 * num.doubleValue());
        }
        if (ast.isAST(F.GreaterEqual, 3)) {
            IExpr expr = F.eval(F.Subtract(ast.arg1(), ast.arg2()));
            ISignedNumber num = expr2ObjectiveFunction(expr, coefficients);
            if (num == null) {
                return new LinearConstraint(coefficients, Relationship.GEQ, 0);
            }
            return new LinearConstraint(coefficients, Relationship.GEQ, -1 * num.doubleValue());
        }
        if (ast.isAST(F.LessEqual, 3)) {
            IExpr expr = F.eval(F.Subtract(ast.arg1(), ast.arg2()));
            ISignedNumber num = expr2ObjectiveFunction(expr, coefficients);
            if (num == null) {
                return new LinearConstraint(coefficients, Relationship.LEQ, 0);
            }
            return new LinearConstraint(coefficients, Relationship.LEQ, -1 * num.doubleValue());
        }
    }
    throw new WrongArgumentType(fExpr, "Conversion from expression to linear programming expression failed");
}

Example 33 with WrongArgumentType

use of org.matheclipse.core.eval.exception.WrongArgumentType in project symja_android_library by axkr.

the class FindInstance method evaluate.

/**
	 * Try to find at least one solution for a set of equations (i.e.
	 * <code>Equal[...]</code> expressions).
	 */
@Override
public IExpr evaluate(final IAST ast, EvalEngine engine) {
    Validate.checkRange(ast, 3, 4);
    IAST vars = Validate.checkSymbolOrSymbolList(ast, 2);
    if (ast.isAST3()) {
        if (ast.arg3().equals(F.Booleans)) {
            IAST resultList = F.List();
            booleansSolve(ast.arg1(), vars, 1, 1, resultList);
            return resultList;
        }
        throw new WrongArgumentType(ast, ast.arg3(), 3, "Booleans expected!");
    }
    IAST termsEqualZeroList = Validate.checkEquations(ast, 1);
    return solveEquations(termsEqualZeroList, vars, 1, engine);
}

Example 34 with WrongArgumentType

use of org.matheclipse.core.eval.exception.WrongArgumentType in project symja_android_library by axkr.

the class CoefficientList method evaluate.

@Override
public IExpr evaluate(final IAST ast, EvalEngine engine) {
    Validate.checkSize(ast, 3);
    IExpr expr = F.evalExpandAll(ast.arg1());
    ISymbol arg2 = Validate.checkSymbolType(ast, 2);
    try {
        ExprPolynomialRing ring = new ExprPolynomialRing(F.List(arg2));
        ExprPolynomial poly = ring.create(expr);
        if (poly.isZero()) {
            return F.List();
        }
        return poly.coefficientList();
    } catch (RuntimeException ex) {
        throw new WrongArgumentType(ast, expr, 1, "Polynomial expected!");
    }
}

Example 35 with WrongArgumentType

use of org.matheclipse.core.eval.exception.WrongArgumentType in project symja_android_library by axkr.

the class CoefficientList method coefficientList.

/**
	 * Get the coefficient list of a univariate polynomial.
	 * 
	 * @param polynomial
	 * @param variable
	 * @return <code>null</code> if the list couldn't be evaluated.
	 */
public static double[] coefficientList(IExpr polynomial, final ISymbol variable) throws JASConversionException {
    try {
        ExprPolynomialRing ring = new ExprPolynomialRing(F.List(variable));
        ExprPolynomial poly = ring.create(polynomial);
        // PolynomialOld poly = new PolynomialOld(polynomial, (ISymbol) variable);
        // if (!poly.isPolynomial()) {
        // throw new WrongArgumentType(polynomial, "Polynomial expected!");
        // }
        IAST list = poly.coefficientList();
        int degree = list.size() - 2;
        double[] result = new double[degree + 1];
        for (int i = 1; i < list.size(); i++) {
            ISignedNumber temp = list.get(i).evalSignedNumber();
            if (temp != null) {
                result[i - 1] = temp.doubleValue();
            } else {
                return null;
            }
        }
        return result;
    } catch (RuntimeException ex) {
        throw new WrongArgumentType(polynomial, "Polynomial expected!");
    }
}