Casio ClassWiz for NCEES

[pghhp]

Ron, the fx-115ES PLUS has 40 constants, but you have to know the index number in order to use them. They are compliant with 2010 CODATA, not the most current.
Here is a list of the first 5 plus one:
Mass of the Proton mp 01 1.672621777 10-27 1.672621777(74) 10-27 kg
Mass of the Neutron mn 02 1.674927351 10-27 1.674927351(74) 10-27 kg
Mass of the Electron me 03 9.10938291 10-31 9.10938291(40) 10-31 kg
Mass of the Muon mm 04 1.883531475 10-28 1.88353475(96) 10-28 kg
Bohr radius a0 05 5.291772109 10-11 5.2917721092(17) 10-11 m
Stefan's constant s 31 5.670373 10-8 5.670373(21) 10-8 W/m2/K4

This is not up-to-date, currently it is:
Stefan Boltzmann's constant Value 5.670367 x 10-8 W m-2 K-4
http://physics.nist.gov/cgi-bin/cuu/Value?sigma
Not sure if the Casio FX-991EX has the more accurate numbers for the constants.
Can the use of an old constant cause an incorrect answer on the test?

In any case, the Casio FX-115ES PLUS requires the user to look up the index of the constant on the plastic protective cover, while the FX-991EX has the abbreviations for the constants built-in. This feature allows the test taker to forego the plastic protective cover yet still look up physical constants. The HP-35s and the TI-36XPRO also have an internal symbol lookup feature with no external index number lookup required.

The NCEES could easily get rid of the TI-30xa calculator from the list- there are many things it doesn't do, such as binary-octal-hex conversion, two variable statistics, matrix math etc.
The TI-30X IIS, TI-30X IIB and thte TI-36X Solar were recalled due to the logarithm bug, yet they are still permitted for use on the test:
http://www.datamath.org/Story/LogarithmBug.htm
The TI-30 Xa SEs was recalled: http://www.ticalc.org/archives/news/arti...29086.html
yet it is still permitted for use on the test.
Last but not least, the HP-35s has its share of bugs:
http://www.hpmuseum.org/cgi-sys/cgiwrap/...i?read=735
and the TI-36X PRO has a well-publicized bug:
http://nickweil.blogspot.com/2012/01/ti-...video.html

I hope the NCEES accounts for the recalled calculators with different answers
when they compose their question pool; otherwise, you could fail the test if
you use the wrong calculator.

I agree the HP-33s is hard to find used because it has been out of production for a long time.
The list of approved calculators needs to be updated to reflect what is available,
fast and accurate, [/align]and commonly used in the engineering community.