Labels:text | screenshot | font | number OCR: Property Description The name of the user function library, or TFormulaLib component, By setting this property you can allow the use of functions defined in a particular library Source The string containing the formula. When changed the new formula is checked and compiled; The number of the formula's argus ments,a run time tread only property UnknownNames Determines whether unknown vari- able and function names are allowed; Figure 1: The properties in the TFormulaCompiler component,