Recent Projects in Graphing Calculator

The Ellipserator

This is next in the series started by "The Parabolator." This one draws ellipses (also known as ovals) and circles. It is an interactive math-art project that can also help you on your own projects. General Instructions: Change the moves on x and y by using the "x shift" and "y shift" buttons. Change the height and width by move the arrow buttons. Press "Graph" to graph and "Clear" to clear. Math Instructions: I suppose this could be used to check your homework or just find out mathy things. Follow the "General Instructions" and look at the equation it gives. Scratch Instructions: There are many instances where ovals are used in projects. For example, in a racing game, there might be an oval track and in a space game, objects might orbit in an oval shape. This equation can be used to make objects move in ovals and circles. Download and look at background 2 to learn how. If this helps you on a project, please tell me so I can see it. Art Instructions: Even if you do not know (or like) this kind of math, this project can be used to make art. Follow the "General Instructions." Change the color by clicking on the pallet. The multi-color part on the left side of the pallet makes the pen color change continually, creating a rainbow effect. Experiment! Tell me what you make. Thanks for viewing my project. Please comment.

Random Graphing machine

Here is my first graphing machine. I will work on an updated version. Please no negative comments!

Circle Works

Draw: Press Draw to draw a circle of the specified radius. Stop: Press Stop to stop drawing. Clear: Press Clear to clear. You do not have to press Stop first. Extras: Press Extras to drop down extra features. Grey features cannot be used at that time. Following are explanations of the features. Type Radius Value: Allows you to use the ask bar to type a radius. Can be used anytime. Fill Circle: This can only be used once a circle is drawn. It fills the circle using a very simple method that can be used even by very young Scratchers. Download and go to Sprite1 for the method. Click again to un-fill. Axis: Can be used at any time. It draws or erases an axis. Free Trace: This can only be used when a circle is drawn. Move around the mouse and the Starfish will follow it around the circle and tell you the coordinates. Angle Trace: Can only be used with a drawn circle. It is the same as Free Trace but instead of using the mouse, you change the angle(in degrees). Designs: Can be used any time. This is what is shown on the display. Press Design to start. Move the origin to the mouse pointer at any time by pressing space. Change the speed. Go ahead and use any method in this project. It would be nice if you gave me credit and told me about it. Please comment!

Go to the Point you Wish to!

Move with arrows. Press space to reset. Please add your valuable comments for my improvement. This is the first project of the XY coordinate series {World}.

Cosine!

Shows how you can do a cosine in scratch using Taylor series expansion.

Grapher

HOW? Press one of the seven buttons on the left. The project will plot the dots then the dots will be connected. REMEMBER: Don't press another button untill the graph is fully drawn. TIP: Have some fun and don't wait untill the previous graph is fully drawn before pressing another button. MY NEW WEBSITE! http://bluecowgames.webs.com/ Go to the Scratch section and leave a message to get your game on my website! WANT MORE BUTTONS? Leave a comment and I might update the game with more graphs to be drawn. LOVE IT? Then press the love it button. MY NEXT GAME! Bubble Struggle. Look out for it. THANKS? Thanks for looking!

The Trigonator

My second math-art project! Don't run away if you don't know (or like) trig because this has multiple uses. General Instructions: Move the "Period" button on the right to change the period, the "vs" button to change the vertical shift, and the "amp" button to change the amplitude. Hit the buttons to graph the various trig functions and "Clear" to, well, clear. Math Instructions: Hit either the button you want to graph and find your equation. Art Instructions: Experiment! Change the color by using the pallette. The larger the period, the wider the curve. VS will move the whole thing up and down. Amp will stretch it up (or down). Try the different trig buttons to see what they do. Everyone: As always, comment, Comment, COMMENT. Tell me what pictures and designs youo make. If you love it, say so, and tell your friends. If you find a glitch, tell me.

The Parabolator

I'm trying to thank people for their comments but it won't let me say the same thing over and over so excuse me if I say something really strange. This a combination of math and art and can be used by people who know algebra and those who don't. General Instructions: Move the min/max (the highest or lowest the arch will go) up and down by dragging the button. Move the x- intercepts (where the arch will cross the x- axis) side to side by dragging the buttons. Click Graph to graph and Clear to clear. Math Instructions: This can help you find an equation if you known the x- intercepts and the min/ max. When you hit graph the equation will show up at the bottom. If the number is really small, scratch will round to 0, so if it says 0 is the coefficient to x squared, it is definitely invalid. Scratch Instructions: When you throw things up and out they generally fall in a parabola- like shape, so using parabolas in your projects will make them more realistic. This will help you find the equation to use, whether you know algebra or not. Move the x- int to where you want the object to start and land and move the min/max to the highest or lowest you want it to go. Hit graph and you the equation it gives (unless it says 0 x squared). The first number on the bottom is a, the second is b and the third is c. Use a repeat block and repeatedly change the x position by a fixed amount and setting y to ((a*(x position* x position))+(b*x position)+(c* x position)) and stamp then repeat. If that doesn't make any sense, feel free to ask lots of questions! Art Intructions: Whether you are familiar with graphing or not, you can make awesome art with the parabolator. Experiment with moving the slides slides, changing the color and background, stopping the arch part way and more. See if you can make pictures and cool designs! Everyone! Comment, comment, comment! Tell me if you like it and what you make. And don't forget: if you love it, click Love it! If you like this, check out my trig project http://scratch.mit.edu/projects/scmb1/557906 Oh! And make sure to check out other graphing calculators in DrSuper's awesome gallery! http://scratch.mit.edu/galleries/view/34684

Graph_Interactive

Just a test of Scratch 1.4

Graph of Numerical Data

Just for test Scratch 1.4 Look at Paddle2seefixt's project http://scratch.mit.edu/projects/Paddle2SeeFixIt/661551

Slope and Intercept

This is the first project in a series of projects to explore basic coordinate system and graphing concepts in Scratch. Here Scratchie shows how a line is drawn when the slope and the intercept for it are specified. I would like to thank my collaborators ffred and dapontes for their comments and improvements to the project and room209 and her class for their collaboration and use of the project. Their comments have been an inspiration for us.

Graphing Engine

The basic engine for automatic math graphing. To make your own graph, replace the block that reads "x / 2" with your own equation for y.

Translation

To see how a polygon is translated first draw the polygon. to do this select an x and a y using the sliders and press the Go To button. You can specify up to 7 vertices (points) for your polygon. To close your polygon press Finished. Then accept or select new dx and dy to specify the translation that you want using the sliders. Finally press the Translate button to see the translated polygon.

Sphere

Updated with adjustable point plotting and THE ALL NEW FEATURE, the sausage. It's a stretched sphere... Please leave comments

Graphing Calculator

So, i decided to make something math related! This is a simple quadratics graphing calculator. Click the the numbers to change the input equation, then hit graph to see it graphed in front of your eyes! This program uses the quadratic formula, and a lot of equations to find x and y positions. This is great for math if you dont have a graphing calculator and you need to graph quadratics! Click the arrow to change from quadratics to absolute values. Enjoy!