} else if( treeName.equals("%") ) {
FclObject terms[] = parseTerms(functionBlock, tree);
return new MffModulus(functionBlock, terms);
} else if( treeName.equalsIgnoreCase("exp") ) {
FclObject terms[] = parseTerms(functionBlock, tree);
return new MffExp(functionBlock, terms);
} else if( treeName.equalsIgnoreCase("ln") ) {
FclObject terms[] = parseTerms(functionBlock, tree);
return new MffLn(functionBlock, terms);
} else if( treeName.equalsIgnoreCase("log") ) {
FclObject terms[] = parseTerms(functionBlock, tree);