(12C) log1p function

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(12C) log1p function

01-31-2019, 04:08 AM

Post: #2

Thomas Klemm Offline

Senior Member

Posts: 1,996
Joined: Dec 2013

RE: (12C) log1p function

From HP-15C Advanced Functions Handbook
Level 1: Correctly Rounded, or Nearly So

[Image: attachment.php?aid=6851]

This trick is used e.g. in Accurate TVM for HP 35s and was adapted for the HP-15C and the HP-34C.

Code:

01 ENTER

02 ENTER

03 EEX

04 +

05 LN

06 X<>Y

07 LSTx

08 EEX

09 -

10 ÷

11 *

Example:

1.23456789 EEX 6 CHS
R/S
0.000001235

CLEAR PREFIX
1234567127

Cheers
Thomas

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Messages In This Thread

(12C) log1p function - Albert Chan - 01-31-2019, 01:10 AM

RE: (12C) log1p function - Thomas Klemm - 01-31-2019 04:08 AM

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