Derive 2 for Dos. Green Screen 286 I think or 386 computers in a small side room. Later Windows version was better. Then there was the DOS version of Minitab 5 I think that came as floppy disks in the back of a spiral bound book which I used to generate data sets for students to process for homework so everyone got a slightly different sample.
You can do a lot of numerical maths just with a noddy spreadsheet of course.
You can do a lot of numerical maths just with a noddy spreadsheet of course.