I newly acquired a hp 33S, and tested its speed for nCr operation. I entered the following:
2000 Enter 1000 nCr
and the calculated result : 1.8099e499
I compared with my 32SII. To my surprise, my 32SII showed an Overflow message and displayed 1e500. My 48G displayed 9.999e499. Apparently, the result of 33S is strange. I continued increasing the value, everytime keeping r=n/2, and see how large the number goes before it gives an overflow message, and the result:
2000C1000 = 1.8099e499
3000C1500 = 1.7674e499
5000C2500 = 2.000e499
7000C3500 = 2.2301e499
8994C4497 = 9.9827e499
8995C4497 = Overflow = 1e500
So the largest value for n without getting an overflow message is 8994, with r=n/2=4997. IN all cases, the 32SII gave overflow message. Does anybody have any idea what happens with this nCr operation?
MY second question: I examined my equation library of 33S, and found the following equation preinstalled at the time of buying: V=.25pi d^2 l. This is the equation explained by the 33S manual. Does anybody also have such equation in their 33S? My serial: CNA4110.
KC