My Grapher HD

My Grapher HD is a simple, versatile graphing calculator for algebra, trig, and calculus.

FEATURES:

Graph like the pros
√ My Grapher HD can plot an unlimited number of functions simultaneously (as many as memory allows).
√ The powerful CAS interprets more equations than you'll ever need. If you can type it using the handy math keyboard, you can graph it.
√ 29 different mathematical functions are available, including trigonometric functions, logarithms, and derivatives.
√ Equations are formatted elegantly, with fractions stacked and exponents in superscript.
√ Define custom domains (restrictions) for functions.
√ Customize your graph with different colors, line weights, line dashes, and data point shapes.
√ Create auto-sizing line graphs and calculate best-fit lines with a tap.

Algebra at your fingertips
√ Use the Trace Mode to evaluate the function at your touch.
√ Find the coordinates of minima, maxima, zeros, y-intercepts, and intersections.
√ The Function Tool lets you enter and receive exact values for all your functions.
√ A powerful symbolic differentiation algorithm can calculate a tangent line for any point on the graph.
√ Get value tables with ease.

Share your graphs
√ My Grapher HD allows you to email, copy, and print graphs.
√ Save a screenshot of your functions to the Photos library.
√ Email and copy value tables in HTML, plain text, and CSV formats.

My Grapher HD was created and developed by a 16-year-old.

Need a graphing calculator that's light and portable, but doesn't waste functionality? Try My Grapher for iPhone and iPod touch.

更新履歴
This update adds new features as well as brings the UI up to date with iOS 7's design. You will need iOS 7 to download this update.

New features:
+Create line graphs that are automatically sized to fit your data. Just tap on the graph and choose "Data Graph."
+Specify the domain of a function by tapping and holding on it and choosing "Info."
+In addition to the existing polynomial regressions, now perform exponential and logarithmic regressions on your data.

If you're taking geometry next year, check out Isosceles : geometry sketchpad. It's an intuitive, versatile geometry studio that makes compass-and-straightedge constructions come alive. Great for teachers and students alike!