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March 7th, 2019, 07:44 AM  #1 
Senior Member Joined: Dec 2015 From: somewhere Posts: 599 Thanks: 87  Exponential function
Just graphed the function $\displaystyle f(x)=x^x $ using a graphing calculator . Does the function makes sense for $\displaystyle x=1$ ? By the graphing calculator the negative values of x are not included. For x=1 , f(x)=1 . Why negative values are avoided ? 
March 7th, 2019, 08:34 AM  #2 
Math Team Joined: Jul 2011 From: Texas Posts: 3,002 Thanks: 1587  

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exponential, function 
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