Free grapher software for windows

Emmetro Grapher is a mathematical software application that allows you a plot 2D, 3D, and Polar functions and coordinates, along with two utilities -- the expression evaluator and the basic calculus problem solver -- that allows you to solve math problems.

Cartesius Grapher 1 is an application for navigating your way via functions by panning and zooming with your mouse. It is free. Easily graphs Cartesian, polar and parametric functions. Includes many analysis tools such as find minimum/maximum, find zero, find intersection, calculate slope and length of a curve. Cartesius also calculates integrals and areas with a simple visual interpretation. Tangent and normal lines can be drawn as well as derivative and integral plots.

A&G Grapher 5.8 is a complete, self-contained professional graphing calculator with graphing equations, 2D or 3D. Simply type down the desired equation and click on the draw button (eg. y=sin(x)+3x or 5x=sin(xy)+y) and let our advanced graphing calculator take care of the rest. 3D graphing can be achieved by simply introducing a z variable in the equation. There are tools included in the graphing calculator for slopes, area under curve, matrix transformation.

Major Features:

1. Ability to save and reopen axis and draw properties as well as the equations,
2. Ability to plot polygons from a list of points
3. Several enhancements and bugs fixed.

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, you can see the graph. MoNooN3DR enables you to modify the graph color, graph resolution, background color(black and white).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 ghaph, and save as bitmap file.

Function grapher Opera Widget quickly draws a function graph Function grapher Opera Widget requires 1024x768+ with tabs. The Function grapher widget is able to plot complex functions and provides scale.
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