Citer : Posté le 28/11/2021 23:18 | #

---

Hello, I guess you are English (fx-cg50 is the English version of the French 90+E).

In fact to use the pixels, you have to draw using the "sketch" menu. You can access all of the function using this screen by pressing SHIFT + F4 ("Sketch").
PlotOn is used to display a pixel at a certain position.
Circle for a circle : https://www.planet-casio.com/Fr/reference_basic_casio/commande_basic.php?fonc=41

I wrote a tutorial about this 2 years ago, here is the link: https://www.planet-casio.com/Fr/programmation/tutoriels.php?id=88
It's a bit old and some of the pictures are gone, but it gives you the basics

---

Citer : Posté le 30/11/2021 08:36 | #

---

If you don't see anything on the screen, it's probably because the View-Window is incorrect.

Remember that when you draw with PlotOn or Circle, you need to use graph coordinates. These are the coordinates used in the GRAPH application. Usually when you draw function curves in GRAPH you only look at small values of x and y, for example -10...10; this is called the View-Window. When you draw with PlotOn or Circle you still need to use these coordinates, meaning that by default only small values of x/y will fit in the screen.

Try for example:


In order that have pixel-level control you need to change the View-Window so that each value of x and y corresponds to one pixel on the screen. I don't remember the exact settings, but it should be something like this:


The parameters go like this: minimum x, maximum x, (irrelevant), minimum y, maximum y, (irrelevant) (and there are more optional parameters after that which are also irrelevant here). Shift+F3 shoud give you that command in PRGM. You can also change the View-Window manually with Shift+F3 in the GRAPH application.

Note that there is only one View-Window so if you change it in PRGM this also affects the GRAPH application. You will quickly get used to resetting it when you want to study functions, but it can be surprising at first.

---