If the number is an integer, then you cannot tell, but it does not matter: the decimal and other representations are the same.
If the number is not an integer, then a decimal will have a decimal point (a full stop) followed by one or more digits. A non-decimal will have a rational element (a/b) with some integers a and b, both non-zero)
The answer depends on what you mean by "opposite": whether it is the additive inverse or the multiplicative inverse.
The fraction 7/9 can be represented as a decimal with an infinite number of 7's after the decimal point. As a percent, we can multiply the decimal by 100 and find that 7/9 is equivalent to 77.(7)%, where (7) indicates an infinite number of 7's repeated.
Assuming the number is represented by a decimal integer, initialise a counter to zero, then repeatedly divide the number by 10 and until the number is zero. After each division, examine the remainder. Each time the remainder is zero, increment the counter. If the number is represented by a decimal float, repeatedly multiply by 10 until the value is an integer, then perform the previous algorithm.
you put a number with a decimal
The number after the decimal.
Find out how are keyboard letters represented as binary data.
Divide the numerator (the top number) by the denominator (the bottom number) and you will get a decimal number.
In whole numbers, a decimal follows the number. Example, in the number 7, the decimal is after it, 7.0 The decimal is not visible, but it is there.
If, by pie you mean π, then there is no such equation since π is an irrational number and that means it cannot be represented by decimal that is either finite or recurring. It has an infinite decimal representation with no pattern in its digits. So there is no end.
It is a requirement to find a decimal representation which has only a finite number of digits after the decimal point.
To find the number of decimal places in a product of decimal numbers, add up the total number of decimal places in each of the factors. For example, if you have 2.5 multiplied by 4.75, there are two decimal places in 2.5 and two decimal places in 4.75, so the product will have a total of four decimal places.
A decimal becase a decimal can be any fraction