Recent Posts
| Title | Description | Creator | created |
|---|---|---|---|
| Variables and Memory Optimization | When you start coding, you need to be mindful to memory usage and leakage. | Dr. Osama M. Khaled | May 27, 2021 10:40 PM |
| Make a phone number callable in Android | You may want to present a number and make it callable. | Dr. Osama M. Khaled | May 23, 2021 11:36 AM |
| Check if a string is Null or Empty | It is sometimes not practical to work out a string object immediately before validating if it is null or not | Dr. Osama M. Khaled | May 17, 2021 09:58 PM |
| Check if a string has a white space at any position | It is important sometimes to check a string and make sure that it does contain a white space (e.g. space, new line, tab, etc ...). | Dr. Osama M. Khaled | May 21, 2021 12:00 PM |
| An efficient way to delete an item from a dynamic list | It is sometimes tricky working with linked lists if you are searching for an item to delete it. | Dr. Osama M. Khaled | May 23, 2021 09:10 PM |
| About | Dr. Osama M. Khaled | Aug 14, 2022 03:19 AM | |
| Postal Rates | Data are often presented in tables, with information organized in rows and columns. This exercise will give you the basic concepts of reading a table to find a piece of information. | Dr. Osama M. Khaled | Oct 02, 2023 07:35 AM |
| Use the multiplication poperty of quality | Multiplying both sides of an equation by the same nonzero number does not change its solution. | Dr. Osama M. Khaled | Sep 29, 2023 07:32 PM |
| Multiply fractions | To multiply two fractions, multiply the numerators and multiply the denominators. Simplify the result, if possible | Dr. Osama M. Khaled | Sep 21, 2023 02:26 AM |
| Use the subtraction property of equality | Subtracting the same number from both sides of an equation does not change its solution | Dr. Osama M. Khaled | Sep 20, 2023 08:53 PM |
| Exercise 2: Concepts | Practice the essential concepts to simplify algebraic expressions | Dr. Osama M. Khaled | Sep 20, 2023 11:45 AM |
| Identify corresponding angles, interior angles, and alternate interior angles | A line that intersects two coplanar lines in two distinct (different) points is called a transversal | Dr. Osama M. Khaled | Sep 18, 2023 11:22 AM |
| Identify and define parallel and perpendicular lines | Parallel lines are not intersecting while perpendicular lines are intersecting and form a right angle | Dr. Osama M. Khaled | Sep 17, 2023 11:24 AM |
| Equivalent Fractions | Fractions can look different but still represent the same part of a whole. | Dr. Osama M. Khaled | Sep 15, 2023 11:28 PM |
| Round whole numbers | When we don’t need exact results, we often round numbers | Dr. Osama M. Khaled | Sep 14, 2023 06:01 AM |
| Use the addition property of equality | Adding the same number to both sides of an equation does not change its solution. | Dr. Osama M. Khaled | Sep 13, 2023 04:08 AM |
| Exercise 1: Vocabulary | Practice some essential vocabulary when you simplify algebraic expressions | Dr. Osama M. Khaled | Sep 12, 2023 11:46 PM |
| Determine whether a number is a solution | An equation is a statement indicating that two expressions are equal | Dr. Osama M. Khaled | Sep 12, 2023 07:03 AM |
| Exercise 6:Translate to algebraic expression | Abstract the words into concrete algebraic expressions | Dr. Osama M. Khaled | Sep 11, 2023 08:13 PM |
| Exercise 1: Guided Practice | An exercise showing how percents could be used in practical situations | Dr. Osama M. Khaled | Sep 11, 2023 05:50 AM |
| Write fractions as percents | We use a two-step process to write a fraction as a percent. First we write the fraction as a decimal. Then we write that decimal as a percent. | Dr. Osama M. Khaled | Sep 09, 2023 01:00 AM |
| Write decimals as percents | To write a percent as a decimal, we drop the % symbol and move the decimal point 2 places to the left. To write a decimal as a percent, we do the opposite: we move the decimal point 2 places to the right and insert a % symbol. | Dr. Osama M. Khaled | Sep 08, 2023 02:09 AM |
| String Processing | String processing algorithms have been important for computer science for a long time in conjunction with computer languages and compiling issues. | Dr. Osama M. Khaled | Sep 07, 2023 11:36 PM |
| Searching | The searching problem deals with finding a given value, called a search key, in a given set (or a multiset, which permits several elements to have the same value). | Dr. Osama M. Khaled | Sep 07, 2023 12:30 AM |
| Sorting | The sorting problem is to rearrange the items of a given list in nondecreasing order | Dr. Osama M. Khaled | Sep 04, 2023 06:31 AM |
| Write percents as decimals | To write a percent as a decimal, recall that a percent can be written as a fraction with denominator 100 and that a denominator of 100 indicates division by 100 | Dr. Osama M. Khaled | Sep 02, 2023 08:26 PM |
| Internet of Things Overview | The Internet of Things (IoT) encapsulates a vision of a world in which billions of objects with embedded intelligence, communication means, and sensing and actuation capabilities will connect over IP (Internet Protocol) network. | Dr. Osama M. Khaled | Aug 29, 2023 03:07 AM |
| Organizational Challenges | Cloud services impact organizations in subtle ways. The cloud impacts the whole company, not just the IT department | Dr. Osama M. Khaled | Aug 28, 2023 06:41 AM |
| Atoms, Molecules, and Ions: Exercises | Test your knowledge in atoms, molecules and Ions | Dr. Osama M. Khaled | Aug 23, 2023 03:27 AM |
| Common names of chemical molecules | Some molecules which have some common names | Dr. Osama M. Khaled | Aug 22, 2023 12:04 PM |
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