--- In [email protected], "David Hamill" <[EMAIL PROTECTED]> wrote: > > Before the Spectrum existed, I played around with an early > Sinclair scientific calculator. Mathematically, > > sin(x)/x --> 1 as x --> 0 > > but on this calculator sin(x)/x blew up for small values of > x!
Probably over 30 years ago my dad brought home a couple of pre-digital calculators from the school where he taught. From what I remember they looked a bit like typewriters, with a row of wheels with numbers on them to show the current value. One of the machines was manual, so you 'entered' the numbers you wanted to multiple/divide, then turned the handle. But the other was electric - it turned the handle itself. And if you entered 1 divided by 0, it just sat there spinning its handle until you pulled the plug out...
