Anyone know how to do equivalent n period discount rate on wolfram

Questions
1

(1+0.22)1/4-1

2

I don’t understand the example/calculation. However there are examples here for discount rate solving:

3

Perhaps your problem is this: I made 22% on an investment over 4 years. What is the equivalent annual rate?
If so, your expression in Wolfram Language is:

In[1]:= (1 + 0.22)^0.25 - 1

Out[1]= 0.0509691
4

Using the Mathematica Time Value function:

FindRoot[TimeValue[100, x, 4] == 122, {x, 1}]

Which is the same calculation.