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I'm liking the Casio FX-115ES PLUS rev 2 ($14.50), because it simplifies rationals and has LCM, GCD and factorization. For example, when you enter sin(60), it
by jhallenworld 6y ago
I'm liking the Casio FX-115ES PLUS rev 2 ($14.50), because it simplifies rationals and has LCM, GCD and factorization. For example, when you enter sin(60), it gives sqrt(3)/2, enter 1/(1+sqrt(3)) gives (sqrt(3)-1)/2 or enter sqrt(120) gives 2*sqrt(30).
https://www.amazon.com/Casio-fx-115ESPLS2-Advanced-Scientific-Calculator/dp/B086Z79HXS/ref=sr_1_3?dchild=1&keywords=FX-115ESPLUS+rev.+2&qid=1607884029&s=office-products&sr=1-3 https://www.amazon.com/Casio-fx-115ESPLS2-Advanced-Scientifi...
This is helpful for my kid's math class.
You wouldn't buy a textbook from Texas would you? So why buy a calculator from there when there is an option from Tokyo? :-)
- rhexs 6y agoReally neat. Is there anything cheap like this that will do simple base conversion -- i.e. hex to base 10 and so on?
- jhallenworld 6y agoThis one can do it, but there are definitely even cheaper calculators that can also do base conversions. One nice thing about this one is that it can do log base 2. (any calculator with log can do it, but with this you don't even have to remember the formula).
- StartupTree 6y agoMade in China, not Tokyo.