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hansklav · (This post was last modified: 05-10-2015 03:56 PM by hansklav.)

(05-10-2015 03:12 PM)Mark Hardman Wrote:
(05-10-2015 02:32 PM)hansklav Wrote: True, but my reply was to Mark Hardman’s post, who started the whole calculation from the left side, and then a 4-level stack will not suffice.

Again, you've written an RPN tutorial!?!

You don’t believe it? Please, feel free to let me know where it can be made better ;-)

Quote:

Code:

x y z t 1 [Enter] 1 - - - 3 [Enter] 3 1 - - 4 4 3 1 - y^x 81 1 - - 2 2 81 1 - x 162 1 - - 5 5 162 1 - / 32.4 1 - - - -31.4 - - - 6 [Enter] 6 -31.4 - - 7 7 6 -31.4 - x^2 49 6 -31.4 - 3 3 49 6 -31.4 1/x 0.3333 49 6 -31.4 y^x 3.6593 6 -31.4 -31.4 - 2.3407 -31.4 -31.4 -31.4 sin 0.0408 -31.4 -31.4 -31.4 8 8 0.0408 -31.4 -31.4 x! 40320 0.0408 -31.4 -31.4 x 1646.7276 -31.4 -31.4 -31.4 + 1615.3276 -31.4 -31.4 -31.4 45 [Enter] 45 1615.3276 -31.4 -31.4 6 [Enter] 6 45 1615.3276 -31.4 7 7 6 45 1615.3276 / 0.8571 45 1615.3276 1615.3276 y^x 26.1240 1615.3276 1615.3276 1615.3276 2 [Enter] 2 26.1240 1615.3276 1615.3276 3 [Enter] 3 2 26.1240 1615.3276 y^x 8 26.1240 1615.3276 1615.3276 9 [Chs] -9 8 26.1240 1615.3276 x<>y 8 -9 26.1240 1615.3276 y^x 4.3047e07 26.1240 1615.3276 1615.3276 x 1.1246e09 1615.3276 1615.3276 1615.3276 x^2 1.2646e18 1615.3276 1615.3276 1615.3276 ln 41.6813 1615.3276 1615.3276 1615.3276 + 1657.0089 1615.3276 1615.3276 1615.3276

Amazing! If you hadn’t written it out so neatly I wouldn’t have believed it possible.
I took Paul Dale's verdict for granted and didn’t even try to do it like this.

I certainly wouldn’t advise a starting RPN-user to do it like this on a 4-level calculator without SOS.

Hans