Problems
Among the problems that have been placed on the machine successfully are: solving the differential equation of a trajectory (see Chapter 5) and solving 32 linear simultaneous equations in 32 unknowns (see Supplement 2). In the second case, the routine tapes were designed to apply equally well to 11 to 100 linear equations in 11 to 100 unknowns. However, the machine can do a very broad class of problems, including, for example, computing a personal income tax. This calculation with all its complexity of choices cannot be placed on any of the mechanical brains described in previous chapters. The machine can, of course, be used to calculate any tables that we may wish to refer to.