Hi, Thank you for this. If you are in the "Maths In = Maths Out" default setting, then it's REALLY IMPORTANT that you press the button immediately before the button. Otherwise you could get a wrong answer! Try this: 15^2 divided by 2 should give you 225/2. If you then square root (225/2) you should get (15 sqr(2))/2. If you now attempt to get a decimal answer (as in previous older Casio models by toggling the key) AFTER obtaining the exact value, by pressing then you'll get 3.256777, which is wrong. The correct answer (10.6066..) is shown only when you press immediately after your calculation. If you are not sure what the answer should be (!), best to use the FORMAT button after obtaining the exact value. Frustrating+++ and also adds a level of uncertainty in an already stressful time-pressured environment. Take home lesson: then = probably the wrong answer; then = probably the right answer. Still not sure? Press and select Digital. Or else revert to our old friend, the tried and trusted Casio fx-85GT PLUS.
that is funny that is the exact fraction i was trying to turn into a decimal. I am subscribing maybe i am reading too much into it but I dont believe in coincidences lol but seriously thank you.
if i do (1+.2) and press exe and then divide it like 1/(Ans) then it gives a standard answer . and after pressing shift and EXE , the decimal answer it gives is not of 1/(Ans) but of (1+.2) . it happens when the calculator is in math I/Math o settings. can you please explain why?
when I use the second method I get wrong answers some time. It shows the right answer in fraction but when I convert it into decimal using second method it is giving wrong answer. like first do 9 divided by 4 then you will get 9/4 then again divided it by 2 it will show 9/8 which is correct but when you convert it into decimal using second method you will get 0.5625 which is wrong .
This is because it will process the answer again. 0.5625 is 9/16 so it has divided by 2 again. Reluctantly I am moving away from the second method and just to FORMAT for those reason.
As an engineering student I never write down an answer past the second decimal place so I really don't care about fraction output. I have the default output decimal and I use fractions only for simplifying expressions.
Please tell how to do indefinite integrals It alwys showing to input limits for the integral But i want to do indefinite soo please make solution for it
3:08 "A slight shift from previous models" ALL dot-matrix models of ES, ES PLUS, EX and CW have the ≈ functionality, i.e. pressing SHIFT then = gives the decimal answer right away. (This isn't the case on two-line models MS and fx-50F/3650P as this is used to switch between the real and imaginary parts of complex numbers)
Indeed. I meant a shift in terms of user behaviour rather than availability of a feature, although I accept it doesn’t come across as that. It is/was very commonly seen to press = then sd with students. That will probably change.
unfortunately, by the time I wanted the 991EX, it was already discontinued, and the only places that sell them (in the UK) are on Ebay. Tried to get one but turned out to be a fake
Honestly speaking the 991 cw is quite better than Ex. There's a way to prevent the hassle of switching to decimal. Make the default output decimal so you always get decimal answers and switching to fraction occasionally isn't that big of a deal.
