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Graphing Calculator

Graphing Calculator

500 - 1,000 downloads

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Innovative, exceptionally powerful integrated scientific/graphing calculator with an intuitive, customizable and most user-friendly interface.

Main features
• Calculate expressions containing complex numbers, such as, (2+3i)^i+5∠(4). You can use i or j for the imaginary unit. The result is given in standard, polar and other forms.
• Graph multiple functions, parametric equations and point sets simultaneously.
• Polar graphs of the above.
• NOTE: To graph the expression in focus press the ‘graph’ button. To graph one or more selected expressions simultaneously, press the ‘Graph’ button (capitalized).
• Find all the x-intercepts of the graph of a function on an interval with a single click.
• Find the points of intersection of the graphs of two functions.
• Curve fitting and linear regression lines: When plotting a point set, the graphing calculator can also find and graph the polynomial of the least degree containing all the points. It can also find and graph the least-squares line - which best fits the given set of points. Or, you can just connect the points with straight lines to form a polygon, for example.
• Calculate symbolic derivatives of functions and parametric equations and graph the derivatives.
• Generate table of values for functions and parametric equations.
• Calculate definite integrals of functions and parametric curves.
• Calculate area under the graph (of functions and parametric curves) in both Cartesian and polar cases.
• Calculate arc length of the graphs (of functions and parametric curves) in both Cartesian and polar cases.
• Choice of scientific, engineering and fixed point notations.
• Choice of background color for the calculator.

You can use the following in your expressions
• Basic algebraic operations
• Power functions
• Trigonometric functions and their inverses (RAD, DEG)
• Hyperbolic functions and their inverses
• Exponential and logarithmic functions
• Factorial, the Gamma function Γ and Psi function Ψ.
• Absolute value and Step functions.

If your expression is incomplete or if you make a syntax error touch the ? mark; this artificial intelligent graphing calculator gives you feedback by precisely indicating the error.

Syntax( by examples)
The graphing calculator, for convenience, automatically appends a default interval to function and parametric expressions and graphs or does calculations over the interval. You can change the endpoints of the interval, of course.

• Function: f(x) = xsin(2x) intvl=(-∞, ∞). (You don't have to type in the interval 'intvl=(-∞, ∞)'; the graphing calculator appends it when you press the graph button. You can change the end-points as desired.)
• Parametric: p(t) = 3cos(3t), 3sin(2t) intvl=(0, 2π). Note: enter x(t) and y(t) separated by a comma -- no enclosing parentheses around x(t), y(t) .
• Point set: 1,2; 2,3; 4,5; Note: enter the point (x,y) as x,y;

The calculator also provides a very useful and intuitive units converter for converting units of mass, length, time and many more quantities.

When viewing the Graphs:
• Touch Polar on the upper right corner of the graphing area to draw the graphs in polar coordinate system.
• Drag the graphs. To center the graph on the screen, touch the coordinate indicator on the top left corner of the graphing area.
• Touch ++ or -- on the lower right corner of the graphing area to zoom in or out.
• Touch the lower left corner of the graphing area (where the caption is) to reset zoom.

•• On the initial use, it’s recommended, especially for larger screens, that you go to Action Bar/Menu > Set Layout, and then choose between 2 or 4 lines of trig functions and whether you want to show or hide the hyperbolic functions. Your settings will be saved even when you close the calculator. You can change them at anytime later.

All of the above with more details are included in the built-in Instruction menu accompanying this graphing calculator.

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Recently changed in this version

• Long press + (on any un-focused input/output panel): does the same as pressing STO but also inserts the corresponding expression in the focused input box.

• Long press STO (on any un-focused input/output panel):: Same as above but inserts the result of the corresponding expression in the focused input box.

• Find a description of long presses under Action Bar/Menu.

• More improvements for editing expressions.


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