Question about Texas Instruments TI-30X-IISTK Scientific Calculator
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Posted on Jan 02, 2017
Yes, you hit the yellow 2nd key and then the back arrow (it says F D above it in yellow.) It's the last key on the bottom of the left hand row.
Posted on Aug 19, 2009
Testimonial: "I finally figured it out by trial and error. Thanks for the help"
If you have an older version on the TI30x Solar (not TI30Xa or newer) then you must use a different key sequence for nPr/nCr.
52 [2nd][x/y] 5 [2nd][nCr] gives 2598960 (the x/y button is above the Pi symbol on my version).
8 [2nd][x/y] 3 [2nd][nPr] gives 336
This took me forever to find out, so hopefully it will help someone!
Posted on Jun 28, 2010
SOURCE: TI-30x How do
Input n, press 2nd [nCr], input r, press =.
For example, to calculate the number of thirteen-card bridge hands that can be dealt from a deck of 52 cards:
5 2 2nd [nCr] 1 3 =
Posted on Sep 15, 2010
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