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hi all, i want to calculate the result of the expression ah = (range * count*10*resolution)/(3600*1000); and later add it to the previous value of it ahfinal = ahfinal + ah; in brief to explain what i want actually is: count is the count of pulses on timer/counter , now these pulses are caliberated as range ------> 1000 pulses xxxx -------> count pulses now these are to be cailberated into one hour so ah = xxxx/3600; now i need a resolution of (1 or 2 or 3 decimals depending on the variable resolution. next the final result should be integrated( i mean added to its previous value ahfinal = ahfinal+ah) here range (25, 75,100) resolution(1, 2, 3) count(some bog number assume around 1000). i dont know how to deal with floating point values in microcontroller programming. can anyone help me thanks in advance narender