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[42S] MANT Challenge
01-22-2014, 12:23 PM
Post: #2
RE: [42S] MANT Challenge
(01-22-2014 09:40 AM)Werner Wrote:  On the 41, you can use Synthetic Programming to come up with a short and efficient routine that returns the mantissa.
Not so on the 42S. Is anyone willing to give it a try?
A few borderline cases that may foil your first attempts (on a real 42S, not Free42):

0
1.00000000001e-01
-9.99999999999
9.99999999999e499


Good luck,
Werner

First attempt. Trouble with your last example. This should be quite easy on the HP-15C: 9 steps on my first attempt.
Code:

00 { 20-Byte Prgm }
01>LBL "MANT"
02 X=0?
03 RTN
04 10
05 ×
06 ABS
07 ENTER
08 LOG
09 IP
10 10^X
11 ÷
12 .END.

Regards,

Gerson.
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Messages In This Thread
[42S] MANT Challenge - Werner - 01-22-2014, 09:40 AM
RE: [42S] MANT Challenge - Gerson W. Barbosa - 01-22-2014 12:23 PM
RE: [42S] MANT Challenge - Dieter - 01-22-2014, 08:58 PM
RE: [42S] MANT Challenge - Dieter - 01-22-2014, 09:40 PM
RE: [42S] MANT Challenge - Werner - 01-22-2014, 12:38 PM
RE: [42S] MANT Challenge - Dieter - 01-22-2014, 01:46 PM
RE: [42S] MANT Challenge - Werner - 01-22-2014, 02:17 PM
RE: [42S] MANT Challenge - Dieter - 01-22-2014, 02:24 PM
RE: [42S] MANT Challenge - Werner - 01-22-2014, 02:34 PM
RE: [42S] MANT Challenge - Dieter - 01-22-2014, 06:50 PM
RE: [42S] MANT Challenge - Dieter - 01-22-2014, 07:53 PM
RE: [42S] MANT Challenge - Thomas Klemm - 01-23-2014, 12:40 AM
RE: [42S] MANT Challenge - Werner - 01-23-2014, 07:46 AM
RE: [42S] MANT Challenge - Werner - 01-23-2014, 09:34 AM
RE: [42S] MANT Challenge - Werner - 01-23-2014, 11:02 AM
RE: [42S] MANT Challenge - walter b - 01-23-2014, 12:07 PM
RE: [42S] MANT Challenge - Dieter - 01-23-2014, 03:15 PM
RE: [42S] MANT Challenge - Dieter - 01-23-2014, 08:19 PM
RE: [42S] MANT Challenge - Werner - 01-23-2014, 09:06 PM
RE: [42S] MANT Challenge - Dieter - 01-23-2014, 09:53 PM
RE: [42S] MANT Challenge - walter b - 01-24-2014, 08:15 AM
RE: [42S] MANT Challenge - Werner - 01-24-2014, 06:16 AM



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