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Floating-point numbers range
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Otto Deckelman
Ranch Hand
Joined: Mar 28, 2001
Posts: 30
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Can someone explain what the range of a float actually means.
example: 1.4E-45 to 3.4E+38
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Marilyn de Queiroz
Sheriff
Joined: Jul 22, 2000
Posts: 9033
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1.4E-45 means
1.4*10^-45 (E stands for "exponent")
(i.e. 0.000000000000000000000000000000000000000000014)
This is the smallest possible positive float number
3.4E+38 means
3.4*10^38
(i.e. 340,000,000,000,000,000,000,000,000,000,000,000,000)
This represents the largest possible postive float number.
Remember that there are also negative float numbers.
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JavaBeginnersFaq
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Otto Deckelman
Ranch Hand
Joined: Mar 28, 2001
Posts: 30
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Marilyn, thanks alot...your explanation really helps 
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subject: Floating-point numbers range
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