Cursive font

But not to be confused with small, cursive f of x.

And what we want to know for any y, or any lower case cursive y in our big set y, is there a unique x solution to this.

What is my pen still works what is the limit I used cursive this time what is the limit as x that's an x as x approaches 2 of f of x?

And then we essentially apply the inverse function to both sides of this equation and say, look you give me any y, any lower case cursive y in this set y, and I will find you a unique x.