What's New

- iOS 8 support
- minor UI changes
- bug fixes

App Description

Good Grapher™ - great and very powerful scientific graphing calculator. It will become your reliable assistant from elementary school to university and work.

Customer reviews:
"Amazing app! I love it. It has Many great features that beat my T83"
"Best calculator. It's my favorite app now ) Functionality and usability is on top level."

SCIENTIFIC CALCULATOR:
- History tape
- real and complex numbers
- radians and degrees angle modes, support for minutes, seconds, grads
- constants: astronomical, atomic, electromagnetic, mathematical, physicochemical, universal
- functions: sin, cos, tan, cot, sec, csc, sinh, cosh, tanh, coth, asin, acos, asec, acsc, atan, acot, asinh, acosh, atanh, acoth, log2, log10, ln, logn(n,x) (log x with base n), √, ³√, abs, avg, ceil, floor, round, deg2rad, rad2deg, max, min, sgn, lcm, gcd, nCr, nPr, arg, real, imag, conj, polar
- operators: +, -, *, /, % (modulus), ^, ! (factorial), ' (minutes), " (seconds), {grad}
- ← - assignment operator and A, B,…,J variables for values storage
- copy/email calculations

2D GRAPHING CALCULATOR:
- carefully-designed graph visualization with multi-touch support (pinch to zoom and drag to scroll)
- cartesian y(x) and x(y), polar r(θ), parametric x(t) y(t), implicit graphs
- inequalities drawing
- function tracing and automatic min/max, zeros, intersections scanning for all function types
- intersection discovering between different function types, e.g. between cartesian y=x and polar r=1
- unlimited number of functions can be drawn simultaneously
- standard, trigonometric and logarithmic axes
- proportional and non-proportional scaling
- customizable graph colors
- table of graph values
- copy, save, email screenshot

3D GRAPHING CALCULATOR:
- pinch to zoom and drag to rotate
- cartesian x(y,z), y(x,z), z(x,y), cylindrical x(p,φ), y(p,φ), z(p,φ), spherical r(θ,φ), parametric xyz(u,v) and implicit graphs
- inequalities drawing
- points, lines, surface drawing modes
- configurable graph bounds
- copy, save, email screenshot

MATH SOLVER:
- polynomial solver:
2x - 3 = 0 (linear)
3x² + 4x + 8 = 0 (quadratic)
5x³ + 2x² - 4x + 2 = 0 (cubic)
7x⁴ - 2x³ + 3x² + 2x - 1 = 0 (quartic)
- system of linear equations solver
with 2 unknown
2x - 9 = 9
3x + 4y = -13
with 3 unknown
-5x + 4y + 2z = -4
7x + 2y + 3z = 19
3x + 5y - 1z = 10

MAC APP STORE
Good Grapher is also available on the Mac App Store.
See www.goodgrapher.com

Visit www.goodgrapher.com for more screenshots, demo videos, details and news. Feel free to contact us for any questions and suggestions.

App Screenshots

(click to enlarge)

Good Grapher Pro - scientific graphing calculator screenshot 1 Good Grapher Pro - scientific graphing calculator screenshot 2 Good Grapher Pro - scientific graphing calculator screenshot 3 Good Grapher Pro - scientific graphing calculator screenshot 4 Good Grapher Pro - scientific graphing calculator screenshot 5 Good Grapher Pro - scientific graphing calculator screenshot 6 Good Grapher Pro - scientific graphing calculator screenshot 7 Good Grapher Pro - scientific graphing calculator screenshot 8 Good Grapher Pro - scientific graphing calculator screenshot 9 Good Grapher Pro - scientific graphing calculator screenshot 10

App Changes

  • November 05, 2014 New version 3.3.0
  • July 20, 2014 Price increase: $0.99 -> $1.99
  • May 21, 2014 Price decrease: $1.99 -> $0.99
  • May 13, 2014 New version 3.2.5
  • May 11, 2014 New version 3.2.4
  • April 25, 2014 New version 3.2.3
  • March 21, 2014 New version 3.2.2
  • September 20, 2013 New version 3.2.1
  • April 18, 2013 Price increase: $0.99 -> $1.99
  • April 15, 2013 Price decrease: $1.99 -> $0.99
  • April 01, 2013 Price increase: $0.99 -> $1.99
  • April 01, 2013 New version 3.1
  • February 20, 2013 Price decrease: $1.99 -> $0.99
  • February 13, 2013 Price increase: $0.99 -> $1.99
  • February 06, 2013 Price decrease: $2.99 -> $0.99
  • January 17, 2013 New version 3.0
  • December 11, 2012 New version 2.1.1
  • December 04, 2012 Price increase: $1.99 -> $2.99
  • December 04, 2012 New version 2.1
  • October 31, 2012 New version 2.0.2
  • October 20, 2012 New version 2.0.1
  • October 09, 2012 Price increase: $0.99 -> $1.99
  • October 04, 2012 New version 2.0

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