Archive for the ‘Number’ Category
Saturday, December 8th, 2007
Numbers can be represented by many ways. Whole numbers, proper fractions, improper fractions, decimal number are some examples.
In this post, I like to talk about fractions and percentage. What is their difference?
Fraction is a ratio of 2 integers. Examples are 3/4, 14/5 and 12/3. It is a way of comparing parts of ...
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Tuesday, November 27th, 2007
When we talk about Algebra, our mind recalls the basic operation of +, -, / and x , as well as the ( ) and = operators. Variables and numbers "fly" over the "= " symbol during maths solving. These are basic algebra we learn in elementary school. However, there is another ...
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Tuesday, November 27th, 2007
Binary maths operations are similar to that of the Decimal number system that we are all familiar with. Decimal is of base 10, whereas Binary is base 2. Base 2 means there is only 2 states. It is either OFF or ON, or another way to put it 0 or 1.
This binary ...
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Sunday, November 25th, 2007
There was once a person by the name of Gottfried Wilhelm Leibniz, a German-born mathematician. In the late 1600s, he invented a unique number system consisting of only 1 and 0. It puzzled many people. Many did not know its usefulness. "What is the use of number in base 2?" they remarked.
However ...
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Sunday, November 25th, 2007
Maths reveals its beauty in many ways. Here, I like to explain about a special property of exponent (or power) to certain integer.
This know-how will come in useful when we are checking for correctness in the last digit of the answer when we do integer exponential.
Here it goes ....
(The last ...
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Wednesday, November 21st, 2007
The number 9 is a special number when it is used as a divisor. It produces an amazing feature.
Divide 152 by 9.
Answer is 16 with remainder of 8.
Let's add up the digits of the original number 152.
1 + 5 + 2 = 8. The answer of "8" tallies with the ...
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