Landscape vs Portrait

[emece67]

(08-29-2016 04:41 PM)Logan Wrote:  This is interesting. I assumed everyone picked up their calculators and used thumbs.

Just as a quick test, I tried entering:

sqrt(-ln(.5)/pi^2) * 30/1.25

And did it on the 42s in about 7 seconds after two attempts. After five attempts on the 15c (setting it down as Marcio and damaltor do), the best I had was about 9 seconds. Not a huge difference and definitely better than two-thumb but preferred the 42s in this particular case.

I repeated this test and, after training, I've found no differences in speed between a portrait machine (34S) and a landscape one (15C, well in fact a DM15L), no matter if I only use my right finger or both thumbs (always 6 seconds). Both machines require the same number of keystrokes. I'm not a big user of the 2-thumbs mode, though (surely a matter of age).

With a 41C I was faster (5 seconds), but this machine does not require a shift to compute the ln.

Until recently, I always used portrait machines, but after buying, and using, some landscape ones, I definitely prefer this layout for desk use. In my case, they use to fit better in a cluttered desk than a portrait one. For handheld use I do not have a clear winner.

Regards.