Thanks a lot!

Thanks Alec for your quick response. The other functions are similar equations. I have the output as a matrix, it seems to work. Although, when I try to export the matrix as a text as follows: > results:=seq(op([i,1],data),i=1..4); > with(ExcelTools); > Export(results, "C:\\Users\\Suresh\\Documents\\Box Models\\test1.txt") Error, invalid input: too many and/or wrong type of arguments passed to ExcelTools:-Export; first unused argument is C:\Users\Suresh\Documents\Box Models\test1.txt or with this: > writedata("C:\\Users\\Suresh\\Documents\\Box Models\\test1.xls", results, array); Error, invalid input: writedata expects its 3rd argument, Format, to be of type {symbol, list(symbol)}, but received [[0., 20.0000000027399984], [.544928854166666698, 18.9673352155168936], [1.01906853645833340, 18.1123907862031075], [1.55228819791666672, 17.1969709734917018], [2.08904238541666710, 16.3223157129580123], [2.62324547395833330, 15.4961003947044862], [3.11852011979166655, 14.7675994887855122], [3.63134832812500008, 14.0494488662583184], [4.16171599479166688, 13.3435582153744381], [4.69038276562500032, 12.6753368314999460], [5.23418152083333421, 12.0229979410469561], [5.71315976041666751, 11.4763781476286192], [6.25237581250000130.. ----- I would like the data as columns: x y1 y2 y3 y4 Thanks Suresh

I am trying to extract numerical data from the following plot? > data := plot({H85, H95, H97, H99}, t = 0 .. 25)