Examples with EvalEngine org.matheclipse.core.eval.EvalEngine used on opensource projects

Example 91 with EvalEngine

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

the class HMArrayList method mapThreadEvaled.

/**
 * {@inheritDoc}
 */
@Override
public final IASTAppendable mapThreadEvaled(EvalEngine engine, IASTAppendable appendAST, final IAST replacement, int position) {
    // final Function<IExpr, IExpr> function = Functors.replaceArg(replacement,
    // position);
    final Function<IExpr, IExpr> function = x -> {
        IAST a = replacement.setAtCopy(position, x);
        return engine.evaluate(a);
    };
    IExpr temp;
    for (int i = firstIndex + 1; i < lastIndex; i++) {
        temp = function.apply(array[i]);
        if (temp != null) {
            appendAST.append(temp);
        }
    }
    return appendAST;
}

Example 92 with EvalEngine

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

the class IntervalSym method cos.

public static IAST cos(final IAST ast) {
    EvalEngine engine = EvalEngine.get();
    return mutableProcessorConditions(ast, (min, max, result, index) -> {
        IAST difference = F.Subtract(max, min);
        if (engine.evalGreaterEqual(difference, F.C2Pi)) {
            // difference >= 2 * Pi
            result.append(index, F.list(F.CN1, F.C1));
        } else {
            // slope from 1st derivative
            double dMin = engine.evalDouble(F.Sin(min).negate());
            double dMax = engine.evalDouble(F.Sin(max).negate());
            if (engine.evalLessEqual(difference, S.Pi)) {
                if (dMin >= 0) {
                    if (dMax >= 0) {
                        result.append(index, F.list(F.Cos(min), F.Cos(max)));
                    } else {
                        result.append(index, F.list(F.Min(F.Cos(min), F.Cos(max)), F.C1));
                    }
                } else {
                    if (dMax < 0) {
                        result.append(index, F.list(F.Cos(max), F.Cos(min)));
                    } else {
                        result.append(index, F.list(F.CN1, F.Max(F.Cos(min), F.Cos(max))));
                    }
                }
            } else {
                // difference between {Pi, 2*Pi}
                if (dMin >= 0) {
                    if (dMax > 0) {
                        result.append(index, F.list(F.CN1, F.C1));
                    } else {
                        result.append(index, F.list(F.Min(F.Cos(min), F.Cos(max)), F.C1));
                    }
                } else {
                    if (dMax < 0) {
                        result.append(index, F.list(F.CN1, F.C1));
                    } else {
                        result.append(index, F.list(F.CN1, F.Max(F.Cos(min), F.Cos(max))));
                    }
                }
            }
        }
        return true;
    });
}

Example 93 with EvalEngine

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

the class Symbol method addAttributes.

/**
 * {@inheritDoc}
 */
@Override
public final void addAttributes(final int attributes) {
    fAttributes |= attributes;
    if (isLocked()) {
        throw new RuleCreationError(this);
    }
    EvalEngine engine = EvalEngine.get();
    engine.addModifiedVariable(this);
}

Example 94 with EvalEngine

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

the class Symbol method clearAttributes.

/**
 * {@inheritDoc}
 */
@Override
public void clearAttributes(final int attributes) {
    fAttributes &= (0xffffffff ^ attributes);
    if (isLocked()) {
        throw new RuleCreationError(this);
    }
    EvalEngine engine = EvalEngine.get();
    engine.addModifiedVariable(this);
}

Example 95 with EvalEngine

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

the class Symbol method setAttributes.

/**
 * {@inheritDoc}
 */
@Override
public void setAttributes(final int attributes) {
    fAttributes = attributes;
    if (isLocked()) {
        throw new RuleCreationError(this);
    }
    EvalEngine engine = EvalEngine.get();
    engine.addModifiedVariable(this);
}