2006-10-26 21:56:21 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Well any integer is a decimal number. You might have heard of Binary, Octal, Hexadecimal, etc. number system. In fact in daily life we use only decimal numbers.
1890 = 1x10^3 + 8x10^2 + 9x10 + 0x10^0
45 = 4x10 + 5x10^0
etc.
Look at the following site. You will find that binary has base 2, octal 8, decimal 10 and hexadecimal 16, etc.
2006-10-26 22:24:45 · answer #1 · answered by psbhowmick 6 · 1⤊ 0⤋
no.
if integer is a decimal number,, therefore integer can be expressed in x/y.
let a = x/y.
if the quotient x/y is a whole number the a=x/y is true. for example 6/3 = 2 (integer)
5/1 = 5 (integer)
7/(-1) = -7 (integer)
but if x/y is not whole,,, example
5/2 = 2.5 (rational)
7/2 = 3.5 (rational)
therefore a=x/y creates a contradiction.
therefore integer cannot be decimal number.
UNLESS u put integer in 8.0000000(7dp) or -9.0(1dp) then it can be decimal.
2006-10-26 21:59:21 · answer #2 · answered by sumone^^ 3 · 1⤊ 1⤋
Integers are a just a special subset of the decimal numbers.
Its like asking, "can a square be a rectangle?"
2006-10-26 22:25:29 · answer #3 · answered by uselessadvice 4 · 0⤊ 0⤋
An integer is by definition a whole number, so no, it can't be a decimal.
2006-10-26 22:03:04 · answer #4 · answered by Anonymous · 1⤊ 1⤋
well you could express an integer, e.g. 31 as,
31.0
or 31.0000000
etc. In theory, every real number has a decimal expansion. but for integers, the only way to express them using decimals is to add any number of .0000..... 's after them
2006-10-26 21:59:45 · answer #5 · answered by tsunamijon 4 · 1⤊ 1⤋
An integer is a whole number so unless it is a number with decimals of only zero behind it e.g. 21.00 then it cannot be a decimal number, no.
2006-10-26 22:05:01 · answer #6 · answered by Jay 4 · 0⤊ 1⤋