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Casio fx-115ES Plus
09-13-2014, 03:10 AM
Post: #13
RE: Casio fx-115ES Plus
(09-12-2014 08:54 AM)Don Shepherd Wrote:  
(09-12-2014 03:31 AM)Gerson W. Barbosa Wrote:  Easier than 1 ENTER + g LSTx x<>y + g LSTx x<>y +... ?

P.S.: Or, on the WP 34S,

1 ENTER +
RCL+ L
RCL+ L
...
About the same:

1 = = preanswer + answer = ...

but on a non-programmable $13 calculator!

Various methods for various machines have been posted in this thread, but the Casio wins the "keystroke efficiency" competition (at least after a few iterations). As Don shows above, the Fibonacci Sequence has a 7 keystroke setup (including one shift key), and each iteration takes only 1 keystroke. Other sequences are similar:

Pell Sequence:
Setup: 0, =, 1, =, 2, Ans, +, ALPHA, PreAns (9 keystrokes)
Iterate: = (1 keystroke)
--> 2, 5, 12, 29, 70, 169, ... (up to the 32nd Pell number, after which it flips into scientific notation and loses digits).

Also, Casio has long supported multiple statements in one line (separated by a colon), which lets you execute an entire sequence of commands repeatedly, by simply by pressing the = key repeatedly. Very cool. Do any non-Casio algebraic calculators do this?

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Messages In This Thread
Casio fx-115ES Plus - Don Shepherd - 09-08-2014, 02:00 PM
RE: Casio fx-115ES Plus - Steve Simpkin - 09-08-2014, 03:13 PM
RE: Casio fx-115ES Plus - kakima - 09-09-2014, 04:34 AM
RE: Casio fx-115ES Plus - SlideRule - 09-09-2014, 10:42 PM
RE: Casio fx-115ES Plus - Joe Horn - 09-11-2014, 11:54 PM
RE: Casio fx-115ES Plus - Don Shepherd - 09-12-2014, 12:51 AM
RE: Casio fx-115ES Plus - Don Shepherd - 09-12-2014, 08:54 AM
RE: Casio fx-115ES Plus - Don Shepherd - 09-12-2014, 03:24 PM
RE: Casio fx-115ES Plus - Joe Horn - 09-13-2014 03:10 AM
RE: Casio fx-115ES Plus - Thomas Klemm - 09-12-2014, 08:41 AM
RE: Casio fx-115ES Plus - Thomas Klemm - 09-13-2014, 10:06 AM
RE: Casio fx-115ES Plus - Don Shepherd - 09-13-2014, 11:11 AM
RE: Casio fx-115ES Plus - Thomas Klemm - 09-14-2014, 01:45 PM
RE: Casio fx-115ES Plus - Don Shepherd - 09-14-2014, 05:39 PM
RE: Casio fx-115ES Plus - Thomas Klemm - 09-14-2014, 07:57 PM
RE: Casio fx-115ES Plus - Albert Chan - 03-16-2019, 04:50 PM



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