calculator-grapher.com Home

Online Graphing Calculator with Derivatives (gCalcD)
Definite Integral and Solving Calculator

Sophisticated, powerful, easy-to-use Online Graphing Calculator for free.

■ To graph using this free online Graphing Calculator, select Function (default), Equation, Parametric Curve or Point Set from the top left of the graphing calculator. To graph using the polar coordinate system select polar on the top right of the graphing calculator. Type in an expression and press Draw Graph on the graphing calculator (or press Enter on the keyboard). You can use radians or degrees to graph or evaluate trig functions.

■ To draw two or more graphs on the same coordinate plane with this graphing calculator, first press Draw Multiple Graphs... Quick Start

■ To solve one-variable equations, f(x) = 0, (or to find zeros or x-intercepts of f(x)), press Solve f(x) = 0 on the graphing calculator (the y-intercept, f(0), is calculated automatically when you press Graph.

■ To generate a table of values for a function press f(...) or, in parametric mode, press p(...).

■ With this graphing calculator you can also calculate proper definite integral and the area under the graph of a function by pressing Compute ∫f & Area.

■ The gCalcD graphing calculator is also a Derivative Calculator. To calculate and graph derivatives first press Find f'(x), f"(x),... on the derivative graphing calculator.

Online Graphing Calculator

Online Derivative Calculator / Partial Derivative Calculator

Online Matrix Calculator

NEW!Complex Number Calculator Online

Examples

Complete Instructions

Calculating/Graphing Derivatives-instruction

Calculating definite integrals/area-instruction

Finding Zeros of
Functions-instruction

GCalcD, Graphing Calculator with Derivatives, is the implementation of all these simple 'Graphers' into one single graphing utility.

Function Graphing Calculator

Equation Graphing Calculator

Parametric Graphing Calculator

Point Plotter

Two-Variable Function Grapher

Do you know? the gCalcD graphing calculator is the only graphing utility that is capable of graphing functions, equations, parametric curves and point sets using the polar coordinate systems (in iddition to the usual Cartesian coordinate systems). More about the gCalcD Graphing Calculator

View users' comments about the gCalcD Graphing Calculator

Graphing Calculator for Android Smart-Phones and Tablets. Based on gCalcD

To use this free online Graphing Calculator/Derivative Graphing Calculator you need to download Java from Java.com. Already have Java? Trouble-shooting

Images of the gCalcD online Graphing Calculator for Free

Below are images of the gCalcD Online Graphing Calculator Free / Derivative Graphing Calculator.

Online Graphing Calculator / Derivative Graphing Calculator Online

Not only the gCalcD Graphing Calculator is the most accurate function graphing utility, but also it's the only graphing calculator that animates polar and parametric graphs. Other graphing calculators just display the graph of polar or parametric expressions. But the gCalcd graphing calculator starts from initial point and let's you see how the graphs are constructed.

Graphing Calculator Online, axis rotated

More demos of the gCalcD Online Graphing Calculator

Information for Mac and non-IE users of the
gCalcD Graphing Calculator

Find out how to change the colors of
graphs, axes, graphing area ...

π: Ctrl+P or Alt+P or pi.
∞: Ctrl+8 or Alt+8 or infinity.
θ: Ctrl+T or Alt+T or theta. You can also use x or t instead of θ in polar mode; the graphing calculator replaces them by θ when you press Draw Graph or Enter on the keyboard.
More Tips

Do you know? By using your mouse you can

■ Drag the graphs to view the desired region. Also double-click in the graph area of the calculator to bring the origin under your mouse pointer.

■ Change the scale on an axis: Hold down Ctrl key and click on an axis on the graphing calculator. More ...

■ Rotate an axis: Hold down Alt key, click on an axis on the graphing calculator and drag. More ...

If you enjoyed using this free online graphing calculator, why not having the function graphing version of it on your Android phones. It also comes with full complex numbers calculation capability.

This featureful graphing calculator is optimised as the most easy-to-use graphing calculator for Android devices.

Buy Now go to Android Market

Free Version go to Android Market.

If the full graphing calculator is not shown, you may need to use your browser's options to zoom in so that the whole graphing calculator could fit in.

Online Graphing Calculator with Derivatives (gCalcD) Definite Integral and Solving Calculator

Images of the gCalcD online Graphing Calculator for Free

Online Graphing Calculator / Derivative Graphing Calculator Online

Online Graphing Calculator with Derivatives (gCalcD)
Definite Integral and Solving Calculator