【實用工具app】Graphing Calculator|最夯免費app-綠色工廠好玩App

• Graph unlimited number of functions, parametric curves and point sets (scattered plot) simultaneously with this easy-to-use graphing calculator.

• Plot polar graphs of the above.

• Curve fitting with polynomials (a feature unique to this graphing calculator) and linear regression line (when plotting a point set).

• Calculate all the x-intercepts of the graph of a function on an interval with a single click.

• Calculate the points of intersection of the graphs of two functions.

• Calculate symbolic derivatives of functions and parametric equations and graph them.

• Generate table of values for functions and parametric equations.

• Calculate definite integral, area under (or enclosed by) the graphs of functions (or parametric curves) and arc length in both Cartesian and polar cases.

• Choice of scientific, engineering and fixed point notations.

• Calculate expressions containing complex numbers, such as, (1+2i)^i-3∠(π/4) with this integrated scientific / graphing calculator. The result is given in standard, polar and other forms.

• 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 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;