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

Example 6 with SymjaMathException

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

the class MathUtils method getFunctionVal.

public static String getFunctionVal(String fun, String[] var, String resp, String[] vals) throws MathException {
    // return evaluate(command.toString(), null);
    try {
        EvalDouble parParser = new EvalDouble(true);
        double[] values = new double[vals.length];
        for (int i = 0; i < vals.length; i++) {
            values[i] = parParser.evaluate(vals[i]);
        }
        String respVar = null;
        for (int i = 0; i < var.length; i++) {
            if (var[i].equals(resp)) {
                respVar = resp;
                // parParser.add(respVar);
                // respVar.setVal(values[i]);
                parParser.defineVariable(respVar, values[i]);
            } else {
                String temp = var[i];
                parParser.defineVariable(temp, values[i]);
            }
        }
        if (respVar != null) {
            try {
                ASTNode f = parParser.parse(fun);
                return parParser.evaluateNode(f) + "";
            } catch (MathException e) {
                // e.getMessage(), e.context);
                throw e;
            }
        }
    } catch (MathException e) {
        // ParserContext(resp, 0, null));
        throw e;
    }
    throw new SymjaMathException("MathUtils:getFunctionVal - cannot compute function values");
}