0 / 0 outputs NaN
while 1 / 0 outputs Infinity
How javascript evaluates the first mathematical operation?
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See this: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NaN – Peter B Oct 18 '16 at 11:00
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not possible but exact duplicate. – Sid Oct 18 '16 at 11:04
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As per spec
0 / 0 outputs NaN because
Division of a zero by a zero results in NaN; division of zero by any other finite value results in zero, with the sign determined by the rule already stated above.
and 1 / 0 outputs Infinity because
Division of a nonzero finite value by a zero results in a signed infinity. The sign is determined by the rule already stated above.
Point 7 and 8 in the section 12.6.3.2 Applying the / Operator (unordered list)
gurvinder372
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In javascript, 0 / 0 and 1 / 0 denote the division of IEEE754 floating point type arguments.
This floating point specification is very specific about what must happen when a division where the denominator is zero is evaluated. It returns
- +Infinity if the numerator is positive
- -Infinity if the numerator is negative
- NaN if the numerator is also zero
Hence 0 / 0 is NaN, and 1 / 0 is +Infinity.
Note that in other languages (e.g. C, C++, and Java) your division would take place in integer arithmetic, and integer division by zero is not defined.
Bathsheba
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0/0 is the expression which math can not execute. that is why it is Not_A_Number.
Akash Bhandwalkar
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