Comparison Between HP 17B and 17BII+

 Comparison Between HP 17B and 17BII+

This is a quick comparison between the original HP 17B and the current (since 2007) silver HP 17BII+ calculators. I hope the 17BII+ is still being produced and sold, it has been quite a while since an update to the 17BII+.  

The main features of the 17B family have remained constant since the original 17B came to the markets in early 1988:

*  Time Value of Money with Amortization

*  Business Calculations including Percent Change, Cost/Sell/Margin/Markup

*  Four Regression Models:  Linear, Logarithm, Power, Exponential

*  Bond Calculations

*  Depreciation including Straight Line, Sum of the Year's Digits, and Accelerated Cost Recovery

*  Days Between Dates, 10 Alarms, Clock

*  10 Memory Registers with Storage Arithmetic

*  Can use the HP 82240 Infrared Printer (82240A/82240B); even though they are well out of production by now

HP 17B

HP 17BII+

HP 17B Mode Menu

HP 17BII+ Mode Menu

Now for the differences:

HP 17B:  (1988)

*   Available Memory:  6,752 bytes

*   Batteries:  3 x LR 44

*   Case Colors:   Brown, Peach-Orange shift key and text

*   Shift functions are printed above the keys

HP 17BII+:  (2007 - present)

*   Available Memory:  about 31,000 bytes

*   Batteries:  2 x CR2032

*   Case Colors:  Silver, Electric Blue shift key and text

*   Shift functions are printed below the function

*   Double line print option  

*   Currency conversion mode

*   RPN mode (this was added to the HP 17BII in 1990)

I did a quick speed test on the equation:

Σ(I:1:525:1:I)  (Result:  138,075)

The original HP 17B won the speed test.

HP 17B Solver

HP 17BII+ Solver

That is about it.   I love the 17B series, which has a rich set of financial functions and a robust solver that includes ore functions that most calculators have.  (including integer part, fractional part, signum, solve if, Σ, date functions, and yes, the Let and Get functions!)

Eddie

All original content copyright, © 2011-2021.  Edward Shore.   Unauthorized use and/or unauthorized distribution for commercial purposes without express and written permission from the author is strictly prohibited.  This blog entry may be distributed for noncommercial purposes, provided that full credit is given to the author. 

Speed Test: Casio fx-991EX Classwiz vs Canon F-792SGA

Speed Test:  Casio fx-991EX Classwiz vs Canon F-792SGA

https://www.youtube.com/watch?v=39tcSQBakMo


Eddie


This blog is property of Edward Shore.  2015

Speed Test: TI-83 Plus Silver Edition vs. TI-84 Plus C Silver Edition

Speed Test:  TI-83 Plus Silver Edition vs. TI-84 Plus C Silver Edition

This video shows a test of speed between the TI-83 Plus SE and the TI-84 Plus C SE.  They both have a Zilog z80 process which runs up to 15 MHz.  The four tests are:

1.  Graphing y = sin(e^x)

2.  Use a For loop to count to 1,000

3.  Take an inverse of a 10 x 10 matrix of random integers

4.  Solve an equation

The results may be surprising.

Comparison of TI calculators:

http://en.wikipedia.org/wiki/Comparison_of_Texas_Instruments_graphing_calculators

Details of the upcoming TI-84 CE:

http://www.cemetech.net/tools/ti84pce

The video is here: https://youtu.be/usy557hOUF0

Eddie

This blog is property of Edward Shore.   2015

Speed Test - Casio Calculators

Hi everyone! Today I am blogging from home.

Last time I posted a speed test for various Texas Instruments, which you can go to by clicking on this link.

For each calculator, I timed how long does the calculator take until it "counts down" from 2013 to 0. I ran the program on each calculator twice.

The Program TEST2013

TEST2013:
2013 → A
Lbl 1
A - 1 → A
A > 0 ⇒ Goto 1 : 1

The program returns 1 when completed.

For the Casio ClassPad 330, I had to modify the program a bit, as the ⇒ symbol means "store" (instead of "jump") for the ClassPad.

TEST2013 for ClassPad 330:
2013 ⇒ a
Lbl one
a
a - 1 ⇒ a
If a > 0
Then
Goto one
IfEnd

Results

I will start from the oldest made model. Thanks to rskey.org and Wikipedia for the dates.

fx-7000GA (1990): 31.11 sec, 30.89 sec
(The fx-7000GA is as close to the original 7000G as I will probably get).

fx-6300G (1991): 38.91 sec, 38.90 sec

CFX-9850G (1997): 28.58 sec, 28.00 sec

fx-9750G Plus (2002): 28.50 sec, 28.44 sec

fx-3650P (2002) Solar Powered: 3 min 6 sec, 3 min 6.31 sec

ClassPad 330, Operating System 3.04.4000 (2007): 35.89 sec, 36.01 sec

Prizm (fx-CG 10) (2010), Operating System 1.04.3200 : 9.53 sec, 9.44 sec
(I am very happy with this!)

Note that the fx-3650P is a solar powered-calcualtor. I had no idea that this model was released in 2002. I had to get it from eBay, as it is not sold in stores in the United States.

I did not test any of the modern fx-9860g family (GII, Slim, etc...), but I guess that these calculators are fast of the Prizm. From these results, it is apparent that Casio knows how to maximize their processor speed.

Next time I will review the calculator app MyScript. Until next time,

Eddie



This blog is property of Edward Shore. 2013

TI-8x Speed Test - A slowdown for the TI-84+?

Here is a speed test between newer and older Texas Instruments calculators. Please keep in mind this is one way to compare speeds. I ran the program on each calculator listed twice. The test is to see how fast the calculator "counted" to 2013.

Appropriately, the test program is named TEST2013.

TEST2013:*

0 →A
ClrHome
Lbl 1
Output(1,1,A)
IS>(A,2013)
Goto 1

*The TI-81 does not have an Output command, so Disp A was used instead.

---

I will start with the oldest (made) calculator.

TI-81: 52.70 sec, 52.36 sec

TI-82: 38.73 sec, 38.78 sec

TI-83+ Silver Edition, Operating System 1.14:
17.92 sec, 17.96 sec

TI-85: 47.91 sec, 47.43 sec

TI-84+, Operating System 2.55MP, MathPrint Mode On:
1 min 20.03 sec, 1 min 19.91 sec
(yes, this is shocking)

TI-84+ Silver Edition running on a TI nSpire via TI-84+ Keypad, Operating System 2.54MP, MathPrint On:
46.93 sec, 46.15 sec
(a second faster than the TI-85)

I don't know why the tests ran slower on the 84+s. At first, guessed that it is that the MP 2 is more complex than MP 1 and requires a great deal of RAM to operate. If I recall correctly, almost all the TI-8x series run on a Zilog Z80 chip.

A post written in 2010 from ticalc.org stated that there have been reports that programs run slower on the TI-84+ with operating system 2.53MP (or greater). Kevin Ouellet responded that the slow down issue is resolved if MathPrint is turned off.

Source: TI-OS 2.53 Released for the TI-84+ Family, 2/15/2010, written by Nikky. Retrieved 1/23/2013.

Let's put that to the test. If you don't know, on the TI-84+, you can turn MathPrint on and off by pressing the MODE key, scroll up or down to the second page. Choose CLASSIC. In classic mode, the F1, F2, and F4 shortcut menus are still available, except all input is linear.

Running these tests yields these results:

TI-84+, Operating System 2.55MP, MathPrint Off (CLASSIC):
27.02 sec, 27.00 sec

TI-84+ Silver Edition running on a TI nSpire via TI-84+ Keypad, Operating System 2.54MP, MathPrint Off (CLASSIC):
31.03 sec, 31.00 sec

A significant difference for the TI-84+. To compare: 1 minute 20 seconds with MathPrint On, only 27 seconds with it off.

The motto of the story is, if you have a TI-84+ and want to run a program, consider turning MathPrint off, and set it in CLASSIC mode instead.

I am curious to see if TI addressed this issue with the new TI-84+ C Silver Edition coming out this Spring.

Next time, I will post speed times for a handful of Casio calculators.

This blog is property of Edward Shore. 2013