} else if( treeName.equalsIgnoreCase("sin") ) {
FclObject terms[] = parseTerms(functionBlock, tree);
return new MffSin(functionBlock, terms);
} else if( treeName.equalsIgnoreCase("cos") ) {
FclObject terms[] = parseTerms(functionBlock, tree);
return new MffCos(functionBlock, terms);
} else if( treeName.equalsIgnoreCase("tan") ) {
FclObject terms[] = parseTerms(functionBlock, tree);
return new MffTan(functionBlock, terms);
} else if( treeName.equalsIgnoreCase("abs") ) {
FclObject terms[] = parseTerms(functionBlock, tree);