20 Most Recent Casio FX-115ES Scientific Calculator - Page 6 Questions & Answers

There should not be any problem. There is however something you did not talk about. After you finish entering the coefficient of the second matrix (mat B) you should press the AC key. This way you exit the matrix editing utility. Once the matrices are entered and saved, Press [SHIFT][4] (Matrix) Press 3: MatA The label MatA appears on the screen. Pres [+] Press [SHIFT][4] (Matrix) Press 4: MatB At this point your screen shows MatA+MatB Press [=] to get the result [ [-36 , -92], [-69,-17],[-63, -71]]

Sorry, no.

The fraction button.

It's the fraction button. It lets you enter a fraction as a numerator and a denominator.

Hello,
Here is the solution for th FX-991ES.
Hello,

The error may be due to the key you used to signifie inverse. It says in the manual that you should use the key x^-1 not the one used to input general powers.
Here is screen capture from the Appendix to the manual. The picture shows the sequence of keys to press to obtain the inverse of a 2x2 matrix. It is taken from page 41 of Appendix


The matrix used in the exemple is
a_11=2 a_12=1 a_21=1 a_22=2
Here is the link to download the manual and the appendix

http://support.casio.com/manualfile.php?rgn=1&cid=004001004
The link is for FX991ES. Look there foe you manual.

Hope it helps

That depends on, among other things, the shape and pitch of the blades. If the pitch is zero the fan will move essentially no air.

What are d3 and d2? Why don't you clean the equation a bit? It will help you see it better.This calculator, it is not able to solve polynomial equations of degree higher than 3.

There is nothing wrong with your calculator (other than it being a finite machine). 69! is about 1.7x10^98. 70! is 70 times that, about 1.2x10^100. The calculator cannot handle numbers larger than 10^100 and thus the error.As another example, you can square 10^49 and get 10^98, but if you try to square 10^51 you'll get an error because the result of 10^102 is larger than 10^100.

Which manual are you referring to? From page E-47 of the fx-115ES manual at http://www.fixya.com/support/p480502-casio_fx_115es_scientific_calculator/manual-19877, you clear the stat data by pressing SHIFT 1 3 2 while in the stat mode.

This calculator does not have a separator for thousands, millions, etc. This feature may have seemed to the designers to be unimportant in a scientific calculator.You can however change the decimal mark from the dot to the comma. To do that, press [SHIFT][Mode] to enter (Setup).Press the Arrow down. In new screen look for 5:Disp.

This is not a graphing calculator. Besides, most graphing calculators are able to graph functions, and conics are not functions. You need a utility that graphs conics. The Casio FX-9750G and others have a conics utility. On the TI83/84 Plus you can download an application that draws them.

(-19) + 9 + (-3)

SHIFT LN

The sine and cosine function have a range between [-1, 1]. The domain of their inverse functions is [-1,1]. So 20/1 which is 20 is out of the domain of definition of the functions. No limitations for tangent and cotangent.

This calculator cannot manipulate letter symbols, so it cannot do algebra. It can only use numbers whose values are known to it: either those on display, or those stored in variables A to E or F , X, Y, and M.