maximum value for type float in c#

Question

when i do this:

float x = float.MaxValue;

I have the result: 3.40282347E+38

What is E+38? how can I represent the maximum number withou

Answer 1

It's approx. 340 000 000 000 000 000 000 000 000 000 000 000 000

If you use Dan's code, you'll get this as a result:

340282300000000000000000000000000000000

Answer 2

Old question, but here's the min and max in string format.

Using float.Parse
-340282356779733642999999999999999999999 to 340282356779733642999999999999999999999
Using float.MinValue.ToString("#") and float.MaxValue.ToString("#")
-340282300000000000000000000000000000000 to 340282300000000000000000000000000000000
Using float.MinValue.ToString() and float.MaxValue.ToString()
-3.402823E+38 to 3.402823E+38

Answer 3

3.4e38 is 3.4 * 10^38 or 340000000000 ... (37 zeros)

additional information:

http://msdn.microsoft.com/en-us/library/b1e65aza(v=vs.71).aspx

Answer 4

That is Scientific Notation.

5E+2 = 
5 x 10 ^ 2 = 
5 x 10 * 10 = 
5 * 100 =
500

In other words, that's how many decimal places you move the decimal point to calculate the result. Take 5, move it over 2 places, end up with 500. In your example, you need to take your number, 3.40282347 and move the decimal place over 38 times!

Answer 5

Try the following code:

float f = float.MaxValue;
Console.WriteLine("Origianl Value: " + f);
Console.WriteLine("With Zeros:" + f.ToString("0"));

Value

Origianl Value: 3.402823E+38
With Zeros:340282300000000000000000000000000000000

Answer 6

Sorry to necro an old thread but google lead me here and I didn't find a satisfactory answer. I'm sure google will lead someone else here.

The float.h library includes the maximum values for float and others in c. FLOAT_MAX is equal to 340282346638528859811704183484516925440, that is the maximum value that float can store.

I'm not an expert in C but I would imagine this value is universal and wouldn't depend on a x32 or x64 operating system.