One more trick is using the store function. Using the Sto (Shift+Rcl) you can store the values of a, b and c respectively into the variable memories A, B and C. After that, you type in the quadratic formula in terms of the letters using the alpha button and hit enter. Since you have the values of a,b and c stored inside,the calculator automatically evaluates it. You can change the Sign in front of root term to get the second solution
Could you possibly make a "most common mistakes when working with roots and surds" video? It's easy to find a lot of indices errors video, but not roots. It would be really appreciated!
The calculator is following BODMAS/BIDMAS to the letter. When you put in "-3^2" the calculator interprets this as "0-3^2", i.e. it does the orders/indices first then subtracts the result from nothing. As mentioned in the video only by using brackets "(-3)^2" does the calculator interpret the negative 3 correctly because the brackets are evaluated first before the orders/indeces.
Not quite, the issue is much more simple. The minus is an operator telling the calculator that an number is negative. The byte storing that negative number is then computed, and the bit indicating that the number is negative is retained. If you look on wikipedia you can see how negative numbers are stored in binary form, its should be enlightening
so helpful, thanks :)
One more trick is using the store function. Using the Sto (Shift+Rcl) you can store the values of a, b and c respectively into the variable memories A, B and C. After that, you type in the quadratic formula in terms of the letters using the alpha button and hit enter. Since you have the values of a,b and c stored inside,the calculator automatically evaluates it. You can change the Sign in front of root term to get the second solution
Bro your calculator looks like it survived a nuclear bomb
It did, considering it survived quadratics.
Those Maths classrooms are tough environments!
You should see mine
Could you possibly make a "most common mistakes when working with roots and surds" video?
It's easy to find a lot of indices errors video, but not roots.
It would be really appreciated!
very helpful thank you x
You're welcome!
Yeah but I knew how to do it anyway but hope it helped others
I am watching this but I have a FX CG-50
The calculator is following BODMAS/BIDMAS to the letter. When you put in "-3^2" the calculator interprets this as "0-3^2", i.e. it does the orders/indices first then subtracts the result from nothing. As mentioned in the video only by using brackets "(-3)^2" does the calculator interpret the negative 3 correctly because the brackets are evaluated first before the orders/indeces.
Not quite, the issue is much more simple. The minus is an operator telling the calculator that an number is negative. The byte storing that negative number is then computed, and the bit indicating that the number is negative is retained. If you look on wikipedia you can see how negative numbers are stored in binary form, its should be enlightening
My fx991ex does a lot more a lot faster
KaputPictures so does my Fx CG-50