# E-Learn at Code85 Servers

E-Learn at Code85 Servers provides online information for a variety of topics, including Computer Science and Engineering, Statistics, Information Science and Technology, as well as Mathematics. Included are a variety of programs designed to teach difficult concepts, or to show how a complex solution was found to a problem. Some equations can be used to solve homework problems however this is NOT their intent. Use them to learn how to solve a problem, or to verify a correct answer. Do NOT use the work as your own. Additional information can be found in the Terms of Use.

## Computer Science and Engineering

### C++ Programming

Creating and Using a Static Library with Microsoft Visual C++ (.pdf)
Integer To String Conversion (.pdf)
String To Integer Conversion (.pdf)

### Number Systems

Convert Base 10 Integer to Two's Compliment (Web Based Program)
Convert Base 10 Integer to Unsigned Integer Base 2 (Web Based Program)
Convert Two's Compliment to Base 10 (Web Based Program)
Convert Unsigned Integer Base 2 to Base 10 (Web Based Program)

## Statistics

### Distributions

Standard Normal Distribution CDF Calculator (Web Based Program)
Inverse Standard Normal Distribution CDF Calculator (Web Based Program)

### Hypothesis Testing and Confidence Intervals

Confidence Interval for the mean of a normal population
1 Sample Hypothesis Test About a Population Mean

## Information Science and Technology

### Office 2003

Hidden Text in Microsoft Office 2003 (.pdf)
This file describes what hidden text is, as well as how to hide and un-hide text in Microsoft Office 2003.

### HTML

HTML Quick Formatting Guide (.pdf)

## Mathematics

### Calculus

Area of A Rectangle Proof (.pdf)
This file provides a proof of the formula for the area of a rectangle by using basic calculus.

Vectors

### Number Theory

Numbers Divisible by 3 (.PDF)

### Real Analysis

A Rational Multiplied By An Irrational Is Irrational (.pdf)
Proving a Continuous Function Is Increasing on an Interval (.pdf)
Created and maintained by Matthew B. Gately (mgately@code85.com) - 393 page views