Free Graphing Calculator by William Jockusch
 Allows double tap with 3 fingers for magnification
Calculator
 "e E" button – hit once for e (2.71828…) and twice for E (exponential
notation)
 Hit clr to clear the equation out and start new
 Clear history by hitting clear 3 times
 Use the x in the green square as the independent variable
 Hit func for other function or trig for trig functions
 "func" functions available include ln, log, logbase, abs, cbrt for cuberoot,
nroot, toFraction, toMixedNumber, fact for factorial, min, max, lcm, gcd,
discrete math, rounding
 Hit save after entering the equation in the Equations tab before graphing
 Hit units to convert units
Equations (The color of the equation will be the color of the graph)
Graph
 Ability to
o Drag
o Pinch to zoom
o Shake to reset
o Set bounds under settings
o Double tap to find roots, intersections, minima, maxima or to trace.
Reference (This just has a reference for formulas, etc.)
Table
 Allows double tap with 3 fingers for magnification, but the x and y values get
pretty far apart
o Put just x in the other equations to push the columns a little closer
together
 Edit allows you to enter the initial x value and what you want the x's to count
by
Triangle solver
 Allows you to enter 3 sides or angles in a triangle and find the rest as long as
you have at least one side
 You can't use magnification and still move this screen around
Polynomial solver (Linear, Quadratic, or Cubic)
More
 Settings
o Angles (Radians, Degrees)
o Max digits for decimal notation (Choice of 1-10)
o Display decimal places (Choice of 2-12)
o Trailing zeros (On or off depending on whether you want to view
irrelevant zeros)
o Commas in numbers (On or off depending on whether you want the
commas to show)
o Allowed orientation (Portrait, Landscape, Both)
o Button click sound (On or off )
o Portrait display (Small keys or large keys)
o Type of Graph (function, polar, parametric)
o Min X
o Max X
o Min Y
o Max Y
o Same scale X&Y (on or off)
o Graph Labels (on or off)
o Shake to reset (on or off)
o Grid lines (close together or far apart)
o Graph Background (white or black)
 Full version includes
o Complex number
o Graphing of implicit functions
o Level curves
o Graphing of inequalities
o More control over your polar and parametric graphs
o Define your own constants