Thank you very much for posting these videos using the Casio. They are extremely helpful and you make learning to use this calculator uncomplicated. Thank you!! :)
Hello. Can any one help me of this. How can I fine the Value if X (degree 1 eq. ) if the eq. includes an imganery No. for ex. 2X+3i = 1 >>> X =? (tride it with solver but tells me that there is a syntex error !!)
I do not believe that there is any way of having the solver work for imaginary numbers. Just a limitation of the system unfortunately. That said, I will have a look soon and check and let you know if I find anything for you.
Thank you. No, it cannot do algebraic manipulation of inequalities or any other type of expression. If it could, you would not be able to use it in any examination! It can work with inequalities though and there is a new video on my channel showing you how. I hope it proves helpful.
Ok thanks will check that out. Do you think it's worth getting this calculator for A level exams, and then also for studying Mathematics at University? I currently have the FX-991ES which does definite calculus as well as solving quadratics/cubics/simultaneous eqs. Is it much more of an upgrade/help in exams?
The ability to draw graphs should not be underestimated. It is incredibly helpful during A-Level Maths and Further Maths, and certainly for extension throughout university. Personally, I would definitely recommend it. Virtually all of my students use a Casio graphical calculator. Other brands exist, but this is my preferred option. It is very good for graphs, statistics and so on. Have a look at my three main videos on how to use it Basics: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-2noCfYbfe4Y.html, Graphs: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-m6IJb7YLoTk.html and Statistics: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JKfKb_-NypA.html and that should give you a good guide to what it can do. Good luck with it all!
I am away from my calculator at the moemnt, so am doing this from memory, but either go into the settings mode and make sure that you are in "Norm" mode. Or, simply press the "S-D" button to switch between symbolic and decimal forms of answers. Hope that helps.
To the best of my knowledge, no there is no facility for argand diagrams within the calculator. You could get around it by using standard Cartesian geometry, plotting the points as (x,y) rather than x+yi, which may show you whatever you need.
Not exactly. The calculator cannot perform algebraic manipulation, so it cannot solve some of the more complicated equations. If it is a simple polynomial and you have put your calculator into complex mode, it will solve those. For anything more complicated, I would recommend drawing a graph that may help you to find any real roots and thus simplify your equation somewhat. I hope that helps.
I'm not sure what you mean by a "graph of intersection", but if you mean how to find the points of intersection between two graphs, all you need to do while looking at the graph itself, is press F5 for 'Graph Solve', then F5 for 'Intersection'. It will find the first point of intersection, from left to right, that is within the graph shown. If there are other points of intersection, press the right arrow key to move to the next one along as necessary. Hope it helps.
@@mathshelpwithmrorys8555thanks for the reply! I am aware of that function. The problem now is I do not know how to draw circle with equation such as X^2+Y^2=4 in the "graph" section along with a linear equation so that i can see their intersection.( I know that i can do it in the "conics" section but that wont allow me to find the intersections)
@@FBR2169 Ah, my apologies. I understand the problem now. The bad news is that I don't think it can be done, the good news is that there is a simple workaround. The graphing section does not appear to have a mode inbuilt to it that enables you to draw circles, ellipses etc, which strikes me as a massive oversight! However, by rearranging the equation, you can do it. For x^2+y^2=4, rearrange to get y=sqrt(4-x^2) and don't forget to include the negative, i.e. y= - sqrt(4-x^2). This will then draw both halves. It may appear to have gaps between the two halves, but this is just an artifact of how the calculator works out what to draw. Zooming in will show the relevant section as being present. To save a little time, if you have say Y1 on the equation screen as sqrt(4-x^2), you can simply put Y2 as Y2 = - Y1, with the "Y" command being found by pressing "VARS", then F4 for "GRAPH". I hope that solves it for you.
Ok. We say goodbye any "real" calculator (basic, scientific, graphing) because this is too very expensive, calculates or is graphing very slow and has only very low resolution screen. I'm recommended you buy any low-end or mid-end smartphone and then download best graphing calculator FREE for super fast evaluation, high resolution screen with true color depth (=16.8 million-color)... :)
