public CachingDoubleValueSource(DoubleValuesSource source) {this.source = source;cache = new HashMap<>();}

public CachingDoubleValueSource ( DoubleValuesSource source ) { this . source = source ; cache = new HashMap < > ( ) ; }
public CachingDoubleValueSource(ValueSource source){this.m_source = source;m_cache = new JCG.Dictionary<int, double>();}
