24hr Time Calculations
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05-17-2022, 07:44 PM
(This post was last modified: 05-17-2022 07:44 PM by Steve Simpkin.)
Post: #4
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RE: 24hr Time Calculations
As Garth and Peet mentioned, no programming necessary. The HP-42S/DM42/Free42 does have the HMS+ and HMS- functions. They use the HH.MMSSss format for time entry. Use FIX 4 (for HH.MM.SS) of FIX 6 (for HH.MM.SSss) display format for best results.
For your example type : 16.3200 [ENTER] 9.0000 [HMS-] The answer is 7.3200 (with the display set to FIX 4). You might want to assign the HMS+ and HMS- functions to the Custom menu if you use them frequently. |
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