Sunday, April 24, 2022

TI-84 Plus CE (Python): Using SciTools for Conversions and Constants

 TI-84 Plus CE (Python):  Using SciTools for Conversions and Constants


SciTools 



SciTools is a complementary application that comes with the purchase of the TI-84 Plus family.   The SciTools offers four tools:


1.  SIG-FIG Calculator:  calculate using a designated number of significant digits

2.  UNIT CONVERTER:  conversions and constants, which will be this blog entry's focus

3.  DATA/GRAPHS WIZARD

4.  VECTOR CALCULATOR:  vector mode


Converting Units in SciTools


The Unit converter has two screen:  upper screen has the units to be selected, bottom screen is where the conversion happens.   


1.  Press [ apps ] and select SciTools, you may have to scroll.    

2.  Select option 2: UNIT CONVERTER.

3.  You will be prompted for a Unit Category, either arrows or the number keypad can be used.

4.   Enter the value to be converted.  

6.  Use the arrow keys to select, by pressing [ enter ] to select the "from" unit and the "to" unit.   Results will be shown in scientific notation.


Example:  70 ft to m:

1:  LENGTH, 70, select ft, [ enter ] select m, [ enter ]


7E1 ft > 2.1336E1 m  (21.336 m)





To copy the results to the home screen, press [ zoom/f3 ] (EXPT).  You will have to leave the app entirely to use the export as the result starts a new calculation in Home mode.


Copying a Scientific Constant


The numeric value of a scientific constant can be copied from SciTools to the Home Screen (unfortunately this can be done to a programming editing page) by the following:


1.  Press [ apps ] and select SciTools.  

2.  Select option 2:  UNIT CONVERTER

3.  To get to the list of constants, press either [ y=/f1 ] or [window/f2].   

4.  Use the arrow keys to select the scientific constant.  The name, it's value, and units will be displayed at the bottom of the screen.

5.  Press [ zoom/f3 ] (EXPT) to export the constant to the Home screen.  

6.  Press [ 2nd ] [ mode ] (QUIT) three times to get back to the home screen.  

7.  To use the constant in operations, either press [ enter ] and use Ans, or store the value in a variable (A-Z, Θ) for future calculations.




I'll admit that this is cumbersome.  Unfortunately, a constant's value cannot be copied directly to a program editing screen.  It's better than nothing...


HP 32S and HP 32SII Week:  May 2, 2022 - May 6, 2022


Eddie 



All original content copyright, © 2011-2022.  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. 


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