mathematical function graphs
Equation Grapher 2.0.5
Equation grapher is an easy-to-use software for 2D function graphing. more>> Equation grapher is an easy-to-use software for 2D function graphing. 2D function graphs can be plotted in Cartesian and polar coordinate systems.Equation grapher is an easy-to-use software for 2D function graphing. 2D function graphs can be plotted in Cartesian and polar coordinate systems.Equation grapher is an easy-to-use software for 2D function graphing. 2D function graphs can be plotted in Cartesian and polar coordinate systems<<less
2D function graphs can be plotted in Cartesian and polar coordinate systems. 2D function graphs can be plotted in Cartesian and polar coordinate systems. The curveExcel Function Dictionary 2.0
The Excel Function Dictionary contains over 150 examples of functions more>>
SpeQ Mathematics 3.3
SpeQ is a small, extensive mathematics program with an intuitive matlab 6.1 more>> SpeQ is a small, extensive mathematics program with a simple, intuitive interface. All calculations are entered in a sheet. In there you can freely add, edit and execute all calculations. You can define variables and functions, and plot graphs of your functions. You can save your calculations for later re-use.matlab 6.1
Features:
SpeQ has the following features.
Expression calculations with arithmetic, conditional, logical and bitwise operators
Around 100 built-in mathematical, physical and conditional constants
Around 60 built-in functions for Analysis, Arithmetic, Complex numbers, Hyperbolic, Integers, Logical, Probability, Numeral systems, Statistics, Trigonometry
Define your own variables and functions for use in calculations
Plot fully adaptable graphs, trace the plotted functions, save your graphs
Extensive support for units
Decimal, binary, hexadecimal and octal numeral systems
Calculations with lists
Complex number calculations
Colored workarea
Save and load sheets
Orderly overview of all available functions and constants in the Functionstree
A list with all defined variables and functions in the Memorylist
Context-sensitive help and a detailed users guide<<less
Function grapher Opera Widget 0.4.2
Function grapher Opera Widget quickly draws a function graph more>>
Simply type 2x*sin{x-3}*cos[x^2]/sqrt|x| to see what it can do.
From version 0.3 Function grapher supports dragging canvas.
Instructions:
- Enter function in infix notation using "x" as a intependand variable.
- The formulas are case sensitive.
- Operator Priority is recognised.
- Grouping symbols can be used to change order of evaluation.
System requirements:
- Opera 9 or later
Functions 3D 1.3
Render 3D surfaces from mathematical expressions on your desktop. more>>
Functions 3D 1.3 is an effective program in which you can enter a mathematical function and have it rendered in a 3D space.
Major Features:
- Operators
- + Addition
- - Subtraction
- * Multiplication
- / Division
- ^ Exponentiation
- Variables & Constants
- x Variable
- y Variable
- pi 3.141592653589793
- e 2.718281828459045
- phi 1.618033988749895
- rand A random number (0<<less
I See Graphs 3.3
I See Graphs is designed by a high school math teacher of 30 years as a useful tool which makes it possible for students to see abstract algebraic concepts. more>> <<less
Functions 2d 0.2
Functions 2d Opera widget allows you to enter a mathematical function and have it plotted on a 2D plane more>>
Equations are entered as a function of x. An example for a unit circle would be:
f(x) = (1-x^2)^(1/2)
There is one main feature that is missing from this release and that is that the axis do not have markings on them. This is due to the limitation of Canvas not being able to write text, however in a later release I will have my own text implementation.
Note: To install the widget you have to drag & drop the .zip file on the Opera Widgets Manager window.
System requirements:
- Opera 9 or later

Function Analyzer 1.0
Function Analyzer is a program that permits you to see the graph more>> Function Analyzer is a program that permits you to see the graph of a function like
f(x)= .
In this picture you can see the graph of this function:
f(x)=1/Cos(x)/(1/X)
The usage is very simple:
- Write the function expression in the bottom combo box or choose and modify a predefined one (see the list of recognized keywords).
- Press the Analyze button to show the graph.
After this you can:
- Move the X,Y axis, zoom in/out, increase/decrease precision (more precision you use more time the program take to process the expression).
In order to parse complex expressions Ive created a parser using GOLD Parser Builder by Devin Cook giving it a BNF rule grammar created by me ;-).
After this, the GOLD Parser Builder creates a skeleton program Ive used to parse expressions.
The BNF sintax used is present in the program installation folder (expression.grm).<<less

MoNooN Grapher 2DR 2.0
MoNooN Grapher 2DR enables you to modify the graph color more>> MoNooN Grapher 2DR is the simple software that draws and shows the graph of the 2-dimensional mathematical functions in rectangular coordinates.
If you input equations, choose colors, and choose line types, you can see the graph. MoNooN Grapher 2DR enables you to modify the graph color, graph line type, background color, and insert new graph(maximum 30 graphs), move the graph, zoom it. Arrow keys and +/- keys enable you to move the graph and zoom the graph. And through the option dialog box, you are able to modify the ranges and steps. Also you can view the window in full-screen mode, print the graph, and save as bitmap file.<<less

Falco Graph Builder 2.3
Falco Graph builder for students. 1. Save and Load. 2. Copy to Clipboard. 3. Almost all functions. 4. Printing. 5. Can draw a graphs with t-parameter, i.e. in the time. 6 more>>
1. Save and Load.
2. Copy to Clipboard.
3. Almost all functions.
4. Printing.
5. Can draw a graphs with t-parameter, i.e. in the time.
6. Filled Graphs.

Excel FUI 0.2
Excel FUI 0.2 is developed to be a comprehensive program which provides a universal interface for a number of functions and programs, mathematical or any others. more>>
Excel FUI 0.2 is developed to be a comprehensive program which provides a universal interface for a number of functions and programs, mathematical or any others. It's not secret that several functions and programs, especially mathematical (e.g. MATLAB's ode45) and command-line tools, are very powerful but unusable by itself because of unreadability of a code utilizing them.
This application acts as a translator of user input data (e.g. mathematical equations) in its natural, human-readable form to code using those functions and programs to process the data (e.g. to solve the equations).

The DME Calculator 2
The DME Calculator provides you with a smart and helpful calculator which can be used in Windows. more>>
The DME Calculator 2 provides you with a smart and helpful calculator which can be used in Windows. It is a small, very flexible program that was originally developed for controlling scanning probe microscopes.
Major Features:
- Many predefined mathematical functions
- Use of variables, like in the expression a = 2, 5*a
- Easy to use 2D graphic- and function plotter
- Text output window for displaying intermediate results and other text
- Definition of functions e.g. define(f(x);2*x), meaning f(x) := 2 * x, full recursive programming supported
- Flow control statements like if(), for(), while() like in a normal programming language
- File I/O for numerical multi-column ASCII files and text files
- Supports serial communication via RS232 port
- Multiple expressions in one single file
- On-line syntax check
- Fast execution speed
- On-line function description
Requirements: Windows 95/98/Me/NT/2000/XP/2003 Server
MoNooN2DR Grapher 1.1
The simple software that draws and shows the graph of the 2-dimensional mathematical functions in rectangular coordinates. If user input equations, choose colors, and choose line types, user can see t more>>
MoNooN3DR Grapher 1.0
MoNooN3DR is the simple software that draws and shows the graph of the 3-dimensional mathematical functions in rectangular coordinates. If you input equations, choose colors, and choose resolution, yo more>>
Scientific Calculator Opera Widget 1.01
The Scientific Calculator widget for Opera browser provides a lot of advanced mathematical functions more>>
System requirements:
- Opera 9 or later