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Query about Precision????

 
Ranch Hand
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In the floating point primitives, there is a concept of PRECISION.float is said to be of single precision while double is of double precision.What does the concept mean?
thanx in advance.
 
"The Hood"
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The more digits after the decimal, the more precise (exact) the number is.
Float is 32 bits
Double is 64 bits, it is double the precision of float.
 
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