Hello, Sprechen Sie talk?
I am Martin Rudloff and welcome to my corner! Today's technical (mathetmatical?) tidbit is about multiplying numbers using the binary system. It's actually easier than you may think!
Let's multiply two numbers, 130 x 5 for example!
| 1. | First write down the 2 numbers you want to multiply side by side: 130 x 5. |
| 2. | Now start to create a column under the number 130. Start with the number 1 and keep doubling it until you reach a number under 130. In our example you would have created a column with 8 numbers under 130: 1, 2, 4, 8, 16, 32, 64, 128. |
| 3. | Now let's create a column under the number 5. Start with 5 and keep doubling it until you have the same amount of numbers as in column 1. In our example: 5, 10, 20, 40, 80, 160, 320, 640 (total of 8 numbers). |
| 4. | In the first column, circle all numbers that add up to 130. In this example that would be 2 and 128 (2 + 128 = 130) |
| 5. | In the second column, circle all numbers that correspond to those circled in the first column. In this example that would be 10 and 640. |
| 6. | Add the numbers circled from the second column and you will get the answer to the equation: 130 x 5 = 650 (10 + 640 = 650) |
Try it! It works every time!
Visit www.corvalent.com/martinscorner to view the diagram.
Martin Rudloff is the Chief Technology Officer of Corvalent, an embedded solutions provider focused on Intel Architecture. Corvalent is an Affiliate member of the Intel Communications Alliance, a community of embedded and communications developers and solutions providers.
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