i have a data set of voltage (U) and current(I) reading with respect to time (3500 reading in xls). I want to integrate this discrete data set as per equation in attached pic.

energy equation basically will calculate the energy required for spark generation calculated by the data set in excel file. its a product of voltage and current data w.r.t. time.

Answer 1

[Torsten]

E = trapz(T,U.*I);