Friday, 16 September 2011

How to create horizontal navigation bar using css script (drop down menu version)

oOne of the horizontal navigation menus are created using css and html scripts that can be put on the blog is a horizontal navigation menu / dropdown menu. As the picture below:


In this tutorial we will build the navigation bar from a standard HTML and css script list.

A navigation bar is basically a list of links, so using the <ul> and <li>elements tag :

There are two steps to making the navigation menu


1. Step 1 (Insert css menu on template blogspot)

Thursday, 28 July 2011

Calculate angles using the arcsin, Arccos, arctan in excel 2007

Arcsin function is a trigonometric function that is used to calculate the inverse sinevalue, while the arccos are inverse cosine function, and atan is the inverse tangent function.
This function is an inverse function of sin, cos, tan. In general, writing formulas in Excel can be seen below

syntax:
arc sine ---> ASIN (number)
arc cosine ---> ACOS (number)
arc tan -----> ATAN (number)

Note: a number in radians domain
To display the results of the inverse sine, cosine, tangent in degrees then the formula above needs to be simplified by multiplying by 180/PI () or by combiningthe functions DEGREES

In general the writing of ASIN(), ACOS (), and ATAN() in mathematical equations can be seen below

Example:

1. Create a table below

Monday, 16 May 2011

Free primes number calculator (freeware)

Software primes number calculator is a freeware software can be used to calculate the prime numbers or search and generated primes numbers in any intervals. Software prime numbers is very simple and could be an alternative for users who have difficulty calculating prime numbers.

To use this software is to enter the interval value of numbers in the Input Range, and click the "calculate prime numbers" button, then the program will calculate and display the prime numbers contained in the desired interval.

There are several features such as calculating the number of prime numbers, the total number of prime numbers within a certain interval, as well as facilities to save results of primes that have been calculated.

Compatible with Windows 98, 2000 , XP, Vista and Seven


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