How do I print a double value with full precision using cout?

In my earlier question I was printing a double using cout that got rounded when I wasn''t expecting it. How can I make cout print a double using full precision?

What''s the difference between a single precision and double

The term double precision is something of a misnomer because the precision is not really double. The word double derives from the fact that a double-precision number uses twice as many bits

Difference between long double and double in C and C++

Possible Duplicate: long double vs double I am unable to understand the difference between between long double and double in C and C++. Can anyone help?

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What is the difference between float and double?

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decimal vs double!

When should I use double instead of decimal? has some similar and more in depth answers. Using double instead of decimal for monetary applications is a micro-optimization -

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Correct format specifier for double in printf

Format %lf in printf was not supported in old (pre-C99) versions of C language, which created superficial "inconsistency" between format specifiers for double in printf and scanf.

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Should I use double or float?

A double has a much higher precision due to it''s difference in size. If the numbers you are using will commonly exceed the value of a float, then use a double. Several other

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