Noob&#x27;s guide to the Casio fx-991ES Plus

Double check your algebraic equations:
Mode > 5: EQN > 3: aX^2 + bX + C = 0 > then enter the a, b and c coefficients by putting in the numbers and pressing ener for each > then the root(s) will be shown (use the cursor {the up/down/left/right buttons} to change roots)

Hope it helps

Reply 2

OP

Original post by icyoli

Double check your algebraic equations:
Mode > 5: EQN > 3: aX^2 + bX + C = 0 > then enter the a, b and c coefficients by putting in the numbers and pressing ener for each > then the root(s) will be shown (use the cursor {the up/down/left/right buttons} to change roots)

Hope it helps

Oh, you absolute babe. THANK YOU.

I got well confused at first, realised you had to click Mode and then was all set :P Thanks!

Reply 3

No problem, good luck

Reply 4

OP

Original post by icyoli

No problem, good luck

Thank you

You wouldn't know how to convert units, by any chance? Thought it might be useful :P x

Reply 5

It doesn't really do units, what kind of units did you mean? 1km=1000m kinda thing?

Reply 6

OP

Original post by icyoli

It doesn't really do units, what kind of units did you mean? 1km=1000m kinda thing?

Yeah, like that sort of thing. They usually have questions like, "Turn 25cm^3 into mm^3" and I always lose marks, lol.

Reply 7

gdunne42

21

Original post by Xiomara

Yeah, like that sort of thing. They usually have questions like, "Turn 25cm^3 into mm^3" and I always lose marks, lol.

It tells you how to convert units on the lid.......

Reply 8

The units on the lid are all scientific, there's not really any simple converts there :frown:

Reply 9

OP