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GraphCalc

By Alex Shipman

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Description

GraphCalc is a graphing application that will support as many functions as memory will permit. Functions can be enabled, disabled, and colored. A custom keyboard has been implemented to simplify entering functions.

GraphCalc supports both rectangular and polar functions and both types of graphs can be graphed at the same time. Graphs can be switched from one type of graph to the other. This effectively changes the axes on the graph screen from an x-axis and y-axis for a polar graph graphed as a polar function to a θ-axis and r-axis for a polar graph graphed as a rectangular function. Angle modes can also be changed from radian, degree, and gradian angle modes using the settings tab.

The settings tab permits modifications to various settings used throughout the application such as window settings for the graph screen and table settings for the table tab.

The graph tab displays the graphs of the active functions entered. The multi-touch display is used here to enable panning and zooming. Dragging one finger around the screen will pan around the coordinate system. Pinching with two fingers is used to zoom in and out.

The table tab displays the currently active functions evaluated at every table step value. The table settings may be changed easily to adjust where the table starts counting and what the step, or increment, is between each successive table row. Rectangular functions are represented in (x, y) coordinates on the table tab while polar functions are represented as (θ, r) coordinates.

The following functions and operators are supported

*
/
-
+
^
π
e
mod

cbrt
abs
ln
log
round
floor
ceil
sin
cos
tan
cot
csc
sec
arcsin
arccos
arctan
arccot
arccsc
arcsec

What's New in Version 1.3

Updated the text rendering on the graph screen so that it is faster when drawing the axis labels.

Fixed an issue with the color picker that would cause the application to crash if the device was rotated side-wise and the color picker was dragged all the way down and off the screen.

Fixed an issue that would cause zooming in and out to not work when zooming on the negative y-axis.

Added translations for several languages.

iPhone Screenshot

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GraphCalc
View In iTunes
  • HK$ 8.00
  • Category: Education
  • Updated:
  • Version: 1.3
  • Size: 0.7 MB
  • Languages: English, French, Italian, Spanish
  • Developer:

Compatibility: Requires iOS 3.1.3 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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