Duncan MurrayA calculator you would approve of @SmartmanApps ! This might be one of my favourite algebraic #calculators, but then I was always a fan of Sharps. @calculators
JakeSparkleChickenThat is a beautiful picture of a beautiful calculator! I love mine, too, but it does fall down rather quickly in some of the trig and differentiation edge cases.
@JakeSparkleChicken Thanks! I like the UI so far, lots of features seem implemented well. Have heard about issues with trickier integration, but not about trig - do you have any examples?
Sorry about that! I spoke from memory instead of checking my data first. The Trig functions are pretty middle of the pack, it’s the integration and the processor speed that are not that great. sum((e^sin(atan(x)))^(1/3), 1, 1000) takes six minutes to run, but at least it completes. The Casio fx-991CW takes just over on minute, and even the TI-36X Pro only takes four minutes.
Yes, I think the processor must be slower, and as a result, the integration is more limited. They also have different methods of differentiation, and maybe the Casio one is superior.
I don’t have a 991-CW, but do you know what it can do with the complex functions? My experience of older Casio 991s is that complex is limited to arithmetic operations only. This seems to be the case on the W506T - i.e. it won’t do Log or Sin of a complex number. But then many ‘scientific/non-graphing’ calculators (except for HP) don’t.
As far as complex numbers go, the 991CW doesn’t add anything that most other flagship scientific calculators can do.
@JakeSparkleChicken @[email protected] Ah so just +/-/÷/× and maybe an x²?