Welcome to @DanglyLegs's Graphing Calculator! Fun fact: this project is 100% pen! (except the thumbnail and border) HOW TO TYPE YOUR EQUATION: ○ All equations must be in the form of y=____. Do not type the "y=", but just include what comes after that. ○ "x" is the only allowed independent variable. You can have multiple "x"s in your equation, but no "y"s. ○ All parentheses must be closed. Ex: "2(x+3" won't work, while "2(x+3)" will. ○ Allowed operation symbols include: + - * / ^ ( ) ○ Allowed constants include: pi e (approximated as 3.14159265359 and 2.718281828459045, respectively. ○ Allowed trigonometry functions include: sin() cos() tan() (Note: parentheses must be used to make the calculator work.) ○ Please note that in order to use negative numbers at this time, you will need to type "(0-z)", where "z" is the number you want to be negative. HOW TO USE THE INPUT MENU: - Press the green flag to go to the input menu. - Click "RAD" or "DEG" to change the mode between radians and degrees. - Click the box to the right of "Y=" to type in your equation. See the list above for acceptable syntax. - Click the colored rectangle to the left of "Y=" to cycle through the color options. - Click on the "Xmin," "Xmax," "Ymin," or "Ymax" labels or the number to the right of the label to edit the bounds of the graph. - Adjust the "PRECISION" slider to determine how many points will be plotted on the screen. Around 200 is typically good enough for most equations. - Click "View Graph" to view the graph of the equations you put in. Press the green flag to return to the input menu. - Click "SAVE" to generate a save code that you can save for later or share with others on this forum. https://scratch.mit.edu/discuss/topic/876499/ - Click "LOAD" to paste in a save code. - Press and hold the "r" key on your keyboard for 3 seconds to reset the calculator to the default values. - Click "Calc. Menu" to pull up a list of calculations that can be made. These will only be done on the equation in the Y1 spot (and Y2 for Intersect). Click on any of them to perform the calculation. Click anywhere on the graph when asked for Left bound, right bound, and guess. ~ Exponent block by (I tried to make my own, but failed when negatives got involved.) ~ Pen rectangle drawer by ~ Pen Text Engine++ by ~ Save code generator by If you discover any bugs or have any suggestions for what to add in the future, please let me know! ◈Update Log◈ v1.0 - Created with the ability to graph 5 equations at once that can use the four basic operations, exponents, parentheses, sine, cosine, and tangent. Save and load system, 8 different colors, changeable bounds, rad/deg modes, and precision slider are also part of the project. (4/7/2026) v1.1 - Added the Calc. Menu, with Value, Zero, Minimum, Maximum, Intersect, and dy/dx. (4/14/2026)
