# Graphing Calculator Quick Start

**Note: This documentation is for an older version.**
This calculator offers several features in addition to basic functions of a calculator; here is a list of some of these features:

- Symbolic Parsing of Mathematical Expressions
- Symbolic Differentiation
- 2D XY Plots with Zoom
- 2D Parametric Plots with Zoom
- 3D Parametric Plots (Meshes) with Zoom/Rotate
- Multiple Root Finder

The calculator consists of four major sections shown below:

The basic functions of the calculator are identical to most real or virtual calculators. The Symbolic input is almost identical to Matlab. The symbolic identifiers are

__x__,

__t__,

__u__, and

__v__. For differentiation and 2D XY plots only

__x__ is accepted. For 2D Parametric plots use

__t__ only. For 3D Parametric plots use

__u__ and

__v__.

Here are some examples of valid inputs:

## 2D XY Plots/Differentiation

» sin(4*x)+cos(2x)

» d/dx(sinh(x^2))

» sinh(x)/ln(e)

» 10^x + sgn(x-3)

» sin(cos(x/pi)+cos(2x))-tanh(x/2)*log(x^3)

## 2D Parametric Plots

» 5cos(t)-3cos((2/3+1)t)

» 3t/(1+t^3)

» 2sin(5t)sin(2t)/sin((5-2)t)

## 3D Parametric Plots

» cos(u) * (4 + 3.8 * cos(v))

» (cos(v)

__sin(v)-1) * (1 __sin(v)) * ln(1-pi * v / 10) + 7.5 * sin(v)

» sin(v)^3 * cos(u)^3

To enter the graphics mode press

Note: Use CTRL button to slow down the zooming.

Then enter your equations or select one of the provided samples: