Skip to content
kitty/binMath
No ads, no sign-up

Graph your equations, and read them exactly

Plot polynomials, trig and log functions side by side, then trace them and find where they cross zero and each other.

Drag to pan, scroll or pinch to zoom

Functions

    Use x, + − * / ^, brackets, sin, cos, tan, sqrt, abs, ln, log, exp, pi and e. Multiplication can be implied, as in 2x or 3(x+1).

    Roots and intersections

      Table of values

      Typing functions

      Write the right-hand side of y = f(x), such as x^2 - 4, sin(x) or 1/(x-2). You can type y = in front if you like. Powers use ^, square roots use sqrt, and π is pi. Switch to DEG when you want sin(90) to equal 1.

      Moving around the graph

      Drag the graph to pan, scroll or pinch to zoom in on a point, and use the buttons to zoom or go back to the standard view. Move your cursor or finger over the graph to trace the nearest curve and read off x and y.

      Roots, crossings and tables

      Find in this view lists every place a curve crosses the x-axis and every point where two curves meet, inside the part of the graph you are looking at, to about ten significant figures. Tap a result to centre the graph on it. The table lists values at any start and step, ready for homework or checking a sketch.

      more in the bin

      Keep going.

      More in kittybin Math

      Explore the bin

      kittybin PDFMerge, split, compress, convert, sign and scan PDFs.kittybin StudioConvert, resize, compress and record images, video and audio.kittybin WriteCheck, clean, count, cite and study your writing.kittybin DevJSON, SQL, encoding, regex, secrets and everyday developer utilities.All toolsSearch everything in the bin.