Calculator benchmark

[robve]

(08-08-2021 05:42 AM)jhallen Wrote:  Calculator Benchmark

Another improvement. The Ti-89 Titanium and Voyage 200 are very similar. So I tried the Ti-89 program on the Voyage 200 starting from the usual Calc/Home screen.

Program:

Code:

Apps Left Down Enter 3       New program
Down Down Q Enter Enter      Name it q()                :q()
Down Down                                               :Prgm
F2 6                                                    :Loop 
F3 5 x , y Enter                                        :Prompt x,y
F3 2 x ^ 2 + x - Ln( y ) , Ln( y ^ 2 ) Enter            :Disp x^2+x-ln(y),ln(y^2)
                                                        :EndLoop
                                                        :EndPrgm
2nd Apps                     Switch back to Calc/Home
q ( ) Enter

The Voyage 200 has a Qwerty keyboard and a [ln] key that enters ln(. The setup takes 44 keystrokes.

Execution:

Code:

3.12 Enter
2.56 Enter                displays both answers
x Enter                   input x unchanged
y/2 Enter                 inout half of y, i.e. 1.28

and so on.

Note that you don't have to always enter the values. Also 2x, y/2, and 2y work.

Execution takes 77 keystrokes

Voyage 200: 121 keystrokes

It's a very nice CAS/graphing calculator and easy to program with the Qwerty keyboard. But graphing is a bit slow.

The same x, y, 2x and y/2 input tricks can be used on the Ti-89, I assume.

- Rob