Functions

y = x

Window

≤ x ≤
≤ y ≤
xScale:
yScale:

Table

Move the graph around to update the table!

Roots

Calculate the x-intercept of a graph

Graph:
Guess:

Intersections

Calculate the intersections of two graphs

Graphs:
Guess:

About

This is a graphing calculator created using mainly JavaScript, meant to share similar functions to the TI-84 calculator. This graphing calculator graph any polynomial, logarithmic, trigonometric, and exponential function. Additionally, it can calculate the roots and intercepts of the functions off of an inital guess. This webpage uses webpack for organisation, and a library called expr-eval. For more details, read the README.md on the Github page.

Example

Function: y = x^2 - x - 10

Using the root section of the "calculate" tab, we can calculate the roots. Using an inital guess of -3, we can get the approximation for the negative root, which is -2.70156. To calculate the positive root, we can instead use an inital guess of 4, outputting 3.70156. These are very close to the exact roots, (1±√41)/2.