funny, but I was taught to round in a statistics course the following way. If the digit was even followed by a five then round up. If the digit followed by a five was odd, round down.

Statistically this resulted, when using a large enough sample, a 50/50 ratio of rounding up for 5 and rounding down for five.

132.5 = 133

133.5 = 133

cannot find the cite for this anywhere. Calculators certainly do not follow this rule. This means, on a large enough sample the rounding is on majority, upwards, that is .5 is always rounded up even though it is a midway point between the higher and lower answer.

Any thoughts,

Cheers, Geoff

still playing with the 41CL but will get involved with the 34S soon, well after the book and HCC...

;-)