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Summation on HP 42S
09-25-2018, 04:47 PM
Post: #20
RE: Summation on HP 42S
(09-25-2018 01:59 PM)Frido Bohn Wrote:  Write a program that multiplies natural numbers from 1 to 1000 (factorial) and overcomes the range limit of the HP42S. (The decimal approximation is a fully acceptable result.)

Simple. Add the (base 10) logs of 1...1000. The integer part of the sum is the tens exponent, 10^(fractional part) is the mantissa.

Code:
01 LBL "FCT"
02 0
03 LBL 01
04 RCL ST Y
05 LOG
06 +
07 DSE ST Y
08 GTO 01
09 IP
10 LASTX
11 FP
12 10^x
13 END

On Free42 (with 34 digit accuracy) this yields

2567
4,02387260077

So the result is 4,02387260077 E+2567.

Dieter
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Messages In This Thread
Summation on HP 42S - lrdheat - 09-23-2018, 06:14 PM
RE: Summation on HP 42S - Didier Lachieze - 09-23-2018, 06:28 PM
RE: Summation on HP 42S - lrdheat - 09-23-2018, 06:41 PM
RE: Summation on HP 42S - lrdheat - 09-23-2018, 06:51 PM
RE: Summation on HP 42S - ijabbott - 09-23-2018, 07:40 PM
RE: Summation on HP 42S - burkhard - 09-25-2018, 12:58 PM
RE: Summation on HP 42S - John Keith - 09-25-2018, 04:15 PM
RE: Summation on HP 42S - Thomas Klemm - 09-23-2018, 08:29 PM
RE: Summation on HP 42S - lrdheat - 09-23-2018, 09:25 PM
RE: Summation on HP 42S - Didier Lachieze - 09-23-2018, 10:03 PM
RE: Summation on HP 42S - lrdheat - 09-23-2018, 10:02 PM
RE: Summation on HP 42S - lrdheat - 09-23-2018, 10:37 PM
RE: Summation on HP 42S - Thomas Klemm - 09-24-2018, 12:56 AM
RE: Summation on HP 42S - Albert Chan - 09-24-2018, 11:56 AM
RE: Summation on HP 42S - Thomas Klemm - 09-24-2018, 01:17 AM
RE: Summation on HP 42S - Thomas Klemm - 09-24-2018, 01:52 PM
RE: Summation on HP 42S - Albert Chan - 09-24-2018, 04:20 PM
RE: Summation on HP 42S - pier4r - 09-24-2018, 01:55 PM
RE: Summation on HP 42S - Frido Bohn - 09-25-2018, 01:59 PM
RE: Summation on HP 42S - Dieter - 09-25-2018 04:47 PM
RE: Summation on HP 42S - Frido Bohn - 09-26-2018, 10:10 AM
RE: Summation on HP 42S - Albert Chan - 09-26-2018, 03:13 PM
RE: Summation on HP 42S - Albert Chan - 09-25-2018, 05:28 PM
RE: Summation on HP 42S - lrdheat - 09-25-2018, 05:17 PM
RE: Summation on HP 42S - lrdheat - 09-25-2018, 05:28 PM
RE: Summation on HP 42S - Albert Chan - 09-25-2018, 07:17 PM
RE: Summation on HP 42S - Valentin Albillo - 09-25-2018, 08:01 PM
RE: Summation on HP 42S - Albert Chan - 09-25-2018, 08:59 PM
RE: Summation on HP 42S - Albert Chan - 09-26-2018, 01:23 PM
RE: Summation on HP 42S - pier4r - 09-26-2018, 04:09 PM
RE: Summation on HP 42S - Thomas Klemm - 09-27-2018, 03:47 AM
RE: Summation on HP 42S - Ángel Martin - 09-27-2018, 05:27 AM
RE: Summation on HP 42S - pier4r - 09-27-2018, 10:37 PM
RE: Summation on HP 42S - Thomas Okken - 09-28-2018, 12:33 AM
RE: Summation on HP 42S - pier4r - 09-28-2018, 01:40 PM
RE: Summation on HP 42S - ijabbott - 09-28-2018, 11:20 PM
RE: Summation on HP 42S - Albert Chan - 09-29-2018, 12:51 AM
RE: Summation on HP 42S - Valentin Albillo - 09-29-2018, 01:15 AM
RE: Summation on HP 42S - Thomas Okken - 09-29-2018, 01:24 AM
RE: Summation on HP 42S - ijabbott - 09-29-2018, 11:58 AM
RE: Summation on HP 42S - Albert Chan - 09-29-2018, 12:49 PM
RE: Summation on HP 42S - Thomas Okken - 09-29-2018, 01:50 PM
RE: Summation on HP 42S - ijabbott - 09-29-2018, 04:06 PM
RE: Summation on HP 42S - Thomas Okken - 09-29-2018, 06:15 PM
RE: Summation on HP 42S - ijabbott - 09-29-2018, 09:10 PM
RE: Summation on HP 42S - Thomas Okken - 09-29-2018, 09:33 PM
RE: Summation on HP 42S - Albert Chan - 09-30-2018, 03:03 PM
RE: Summation on HP 42S - ijabbott - 09-30-2018, 05:28 PM
RE: Summation on HP 42S - brickviking - 10-01-2018, 08:40 AM
RE: Summation on HP 42S - pier4r - 09-29-2018, 05:59 PM
RE: Summation on HP 42S - Thomas Okken - 09-29-2018, 08:59 PM



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