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HP 35S Programme to Produce 2 Normal Deviates - Gerald H - 06-11-2014 04:07 PM For no input the programme returns two normal deviates for average 0 and standard deviation 1: 1 LBL T 2 XEQ T021 3 x<>y 4 XEQ T021 5 R↑ 6 + 7 1 8 x<=y? 9 GTO T002 10 R↓ 11 ENTER 12 LN 13 x<>y 14 ÷ 15 -2 16 * 17 SQRTx 18 REGZ*REGX 19 REGZ*REGY 20 RTN 21 RANDOM 22 2 23 * 24 1 25 - 26 ENTER 27 x^2 28 RTN Edit: Sorry, this should be in General Software. RE: HP 35S Programme to Produce 2 Normal Deviates - Marcus von Cube - 06-14-2014 02:34 PM (06-11-2014 04:07 PM)Gerald H Wrote: For no input the programme returns two normal deviates for average 0 and standard deviation 1Can you explain in a few words what this is and the formula you're using. I tried to follow the Wikipedia Article but I'm a bit lost. RE: HP 35S Programme to Produce 2 Normal Deviates - Thomas Klemm - 06-14-2014 05:21 PM (06-14-2014 02:34 PM)Marcus von Cube Wrote: Can you explain in a few words what this is and the formula you're using. cf. Box–Muller transform (polar form) Cheers Thomas RE: HP 35S Programme to Produce 2 Normal Deviates - Paul Dale - 06-14-2014 10:43 PM This is quite an amazing result -- take two independent uniform samples, apply a transform to the pair and get two independent normal samples. The fact that independence is maintained is the real surprise. - Pauli |