C#指数公式

Question

I'm trying to find a way to write an exponential formula in C#. I'm awfully bad in math I admit.

I have values linearly going from 10000 to 1 and need a formula to have results ranging from 400 to 1 but exponentially.

Example results I'dd like:

• 10000 -> 400
• 2000 -> 300
• 1000 -> 200
• 500 -> 100
• 100 -> 50
• 50 -> 10
• 10 -> 2
• 1 -> 1

Does not have to be those exact values, but that's the idea. How would I write a formula to give me those results?

Thanks for any help possible

Answer 1

Assuming you want to use e^(value) , This might help.

Math.Exp Method (Double)

One example could be,

// Evaluate (e ^ X) ^ Y == e ^ (X * Y).
Console.WriteLine( 
    " Math.Pow(Math.Exp({0}), {1}) == {2:E16} \n"+
    " Math.Exp({0} * {1}) == {3:E16}",
    argX, argY, Math.Pow(Math.Exp(argX), argY),
    Math.Exp(argX * argY) );

Using this create a formula which provides required output.