Thread: Help finding a bijective function

Q) Find a bijective function f : (−1, 1) → R.
(Here (−1, 1) is the open interval (−1, 1) = {x ∈ R | − 1 < x < 1}.)

I am struggling with this one. Could I just choose some heaviside step function?

Originally Posted by Danneedshelp

Q) Find a bijective function f : (−1, 1) → R.
(Here (−1, 1) is the open interval (−1, 1) = {x ∈ R | − 1 < x < 1}.)

I am struggling with this one. Could I just choose some heaviside step function?

The tangent function will work you will need to change its domain a bit.

Good luck.

Thanks, I should not have sworn off trig functions so fast ha.