Hi Picers: How can I include the built in functions to my applications? As they give me the following error! ------------------------------------------------------------------------------------------------- Linking: Command line: "D:\MPLAB_~1\MPLINK.EXE /aINHX32 /o MATH_STD.HEX /l D:\MPLAB_IDE499\MCC\LIB;D:\MPLAB_IDE499\MCC\SRC /k D:\MPLAB_IDE499\MCC\LKR D:\MPLAB_~1\MCC\LIB\C0S17.O D:\MPLAB_~1\MCC\LIB\IDATA17.O D:\MPLAB_~1\MCC\LIB\INT756L.O D:\MPLAB_~1\MCC\LIB\P17C756.O D:\MPLAB_~1\MCC\LKR\P17C756L.LKR MATHSTD1.O D:\MPLAB_~1\MCC\LIB\CMATH17.LIB " MPLINK v2.00.01, Linker Copyright (c) 1999 Microchip Technology Inc. Error - could not resolve symbol 'Enable' in file '.\MATHSTD1.O'. Errors : 1 Warnings : 0 MPLAB is unable to find output file "MATH_STD.HEX". Build failed. --------------------------------------------------------------------------------------------------- -- ------------------------------------------------------------------ Ismael M. Khangane, Specialist in Robotics. Automatic Control & Systems ( Bsc in Eng.) Instituto de Automatica Industrial IAI-CSIC Madrid, Spain. Tel: (34) 91 871 1900 Fax: (34) 91 871 7050 E-mail: imkesp@excite.com ; ismaelm@iai.csic.es ------------------------------------------------------------------