Package org.apache.commons.math.util.OpenIntToDoubleHashMap

Examples of org.apache.commons.math.util.OpenIntToDoubleHashMap.Iterator.key()

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    /** {@inheritDoc} */
    public OpenMapRealVector mapSqrtToSelf() {
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            entries.put(iter.key(), Math.sqrt(iter.value()));
        }
        return this;
    }

    /** {@inheritDoc} */
 
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    /** {@inheritDoc} */
    public OpenMapRealVector mapTanToSelf() {
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            entries.put(iter.key(), Math.tan(iter.value()));
        }
        return this;
    }

    /** {@inheritDoc} */
 
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    /** {@inheritDoc} */
    public OpenMapRealVector mapTanhToSelf() {
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            entries.put(iter.key(), Math.tanh(iter.value()));
        }
        return this;
    }

    /** {@inheritDoc} */
 
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    /** {@inheritDoc} */
    public OpenMapRealVector mapUlpToSelf() {
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            entries.put(iter.key(), Math.ulp(iter.value()));
        }
        return this;
    }

    /**
 
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        while (iter.hasNext()) {
            iter.advance();
            Iterator iter2 = v.getEntries().iterator();
            while (iter2.hasNext()) {
                iter2.advance();
                res.setEntry(iter.key(), iter2.key(), iter.value()*iter2.value());
            }
        }
        return res;
    }

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        }
        RealMatrix res = new OpenMapRealMatrix(virtualSize, virtualSize);
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            int row = iter.key();
            for (int col = 0; col < virtualSize; col++) {
                res.setEntry(row, col, iter.value()*v.getEntry(col));
            }
        }
        return res;
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        checkVectorDimensions(v.length);
        RealMatrix res = new OpenMapRealMatrix(virtualSize, virtualSize);
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            int row = iter.key();
            double value = iter.value();
            for (int col = 0; col < virtualSize; col++) {
                res.setEntry(row, col, value * v[col]);
            }
        }
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        checkVectorDimensions(v.getDimension());
        OpenMapRealVector res = copy();
        Iterator iter = v.getEntries().iterator();
        while (iter.hasNext()) {
            iter.advance();
            int key = iter.key();
            if (entries.containsKey(key)) {
                res.setEntry(key, entries.get(key) - iter.value());
            } else {
                res.setEntry(key, -iter.value());
            }
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            throw  MathRuntimeException.createArithmeticException("cannot normalize a zero norm vector");
        }
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            entries.put(iter.key(), iter.value() / norm);
        }

    }

    /**
 
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            return false;
        }
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            double test = other.getEntry(iter.key());
            if (Double.doubleToLongBits(test) != Double.doubleToLongBits(iter.value())) {
                return false;
            }
        }
        iter = other.getEntries().iterator();
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