I never realized until just recently that the HP-35 exponential function was X^Y. I noticed that it was changed to Y^X on the next models the HP-80 and HP-45. Good thing they did.
Edited: 20 Dec 2010, 7:02 p.m.
x^Y vs. y^X
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Post: #4
12-20-2010, 07:00 PM
I never realized until just recently that the HP-35 exponential function was X^Y. I noticed that it was changed to Y^X on the next models the HP-80 and HP-45. Good thing they did. Edited: 20 Dec 2010, 7:02 p.m. ▼
Post: #5
12-20-2010, 07:28 PM
Quote: Gerardo -- This was covered a few years ago, but I didn't bookmark the discussion. "Y^X" is indeed more consistent with other operations such as division and subtraction, which perform Y/X and Y-X, respectively. Unlike the HP-45, the HP-35 lacked a "10^X" key. "X^Y" saved a keystroke over "Y^X" when finding common antilogarithms of a computed value on the HP-35: (value) 10 X^Y This is mentioned on the Museum page for the HP-35. Also, "x raised to the y", like "y over x", may have been considered to be more visually intuitive from the stack representation. -- Karl
Edited: 21 Dec 2010, 7:11 p.m. after one or more responses were posted |