Parametric Equations - Finding The Gradient & Cartesian Equation Of The Curve - Casio fx-CG50

[@ijabbott63]

The Cartesian equation y=√(x+1) only gives you the top half of the curve (taking √(X) to mean the principal square root). Is it acceptable to write it as y=±√(x+1), or would you need to write equations for both halves separately?

[@TheCalculatorGuide]

You’re right. I totally hadn’t considered that even after adjusting the t parameter to include negatives earlier. I imagine it should be acceptable to write ± although I am not 100% sure. Perhaps someone will enlighten us.

[@phylliskeen7142]

You are honestly a life saver

[@mo-fy5wz]

thank! with online school and double maths a level next year you are such a life saver thank you!

[@samuelbrodie1060]

Hi, Can you add the input values in the graphical calculator for t so that you can work out the domain and range of parametric equations?

[@noubarkalost2850]

Hi, thanks for explaining in a such great way. Can you please show us how to save functions in the calculator and solve them for multiple variables? precisely talking about Planck's law of black-body radiation, for example, saving the function and re-use it for different inputs of ( Lambda: wavelength, T: temperature). The function looks like: F(L,T)= ****** , or to calculate the temperature so that the value of the function equals something, without the need to make changes and re-arrange the function

[@zuhakhalid4900]

That was extremely helpful, thank you 🙏

[@s.woraphan2464]

Omg I need this for my uni life and ielts test at wfh

[@amanda-we9fv]

why would you ned a fx-CG50 for ielts

[@noahdavy6781]

Hi there I am trying to do this for curve with equations x=sintheta/2 -3 and y=5-cos2theta would I use the same method.

[@TheCalculatorGuide]

I think so yes. I would use radians as your angle unit though

[@noahdavy6781]

@@TheCalculatorGuide Ok how do you change to radians on the graph mode as, as it stands first off it only displays T but also even when I input the equations the graph is wrong. I have gone on run-matrix and changed it to radians mode but does this also need to be done for the graph mode? Thanks

[@samehalieid5839]

@@noahdavy6781 No, If you change the angle to Radians in the Run Mode, you do not need to change it in Graph mode... But, if you wanted to change it while in graph mode, press shift setup, in the equation-writing space, and choose Radian.

[@muhammad-zaynkalyan6051]

how do you get the squares in the background

[@TheCalculatorGuide]

In GRAPH mode. Shift, Setup, Grid, Line (F3)

[@LiamBavingtonHodge]

Does anyone know how to find the roots and y-intercepts of parametric curves?

[@AceOfHearts001]

Hi there, thank you for the video. It's very frustrating, none of the buttons under G Solve respond when we graph parametric equations. Is there anything I am doing wrong? I can't see roots, intercept or find an area etc.

[@TheCalculatorGuide]

Yes it is very frustrating

[@AceOfHearts001]

@@TheCalculatorGuide The options are there, almost like a bug.

[@zatrix1944]

@@TheCalculatorGuide Greetings! I am encountering the same issue. Is there any fix for this?

[@RandeepSingh-gb6hl]

@@zatrix1944 have you found any solution?

[@muhammad-zaynkalyan6051]

how do you get the numbers of each axsis

[@TheCalculatorGuide]

It will only display so many depending on your V-Window and how far you have zoomed in

[@octavylon9008]

what about in the form x = at² y = 2at

[@revathyvk8776]

Hiya! Im panicking a little because when I follow the steps I still dont get the same graph as you! My graph for even x^3 is not plotting properly. any tips? love your videos!

[@TheCalculatorGuide]

Make sure it is y = as your type of graph and not anything else such as r =

[@razeliezerbenmoshe8052]

CASIO PRIZM FX-CG50 vs Casio Fx-Cg50 Graphic Calculator is the sam one?

[@TheCalculatorGuide]

Yes