How can I make numbers less extreem by a decimal value?

x is a number between 0.00000001 and 1.  If x is 1 then y should remain exactly the same. If the number is 0.00000001 then y should be very close to 1.

I need this in JavaScript but I can write the JavaScript code if you can help me with the logic.

Thanks!
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hankknightAsked:
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ozoCommented:
y = Math.pow(y,x)
0

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hankknightAuthor Commented:
Wow!  Perfect, thanks.
0
ozoCommented:
or
y = (y-1)*x + 1
0
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