If needed to be calculated:

1) f(i)=i^(n)
2) f(i)=sin(i)
3) f(i)=cos(i)
4) f(i)=tan(i)
5) f(i)=arcsin(i)
6) f(i)=arccos(i)
7) f(i)=arctan(i)
8) f(i)=| i |
9) f(i)=e^(i)

Then enter:

f(i)=pow(i,n)
f(i)=sin(i)
f(i)=cos(i)
f(i)=tan(i)
f(i)=arcs(i)
f(i)=arcc(i)
f(i)=arct(i)
f(i)=abs(i)
f(i)=exp(i)

If needed to be calculated:

10) f(i)=ln(i)
11) f(i)=sqrt(i)
12) f(i)=[| i |]
13) e=2.7182818184...
14) π=3.1415926535...

Then enter:

f(i)=ln( i )
f(i)=sqrt( i )
f(i)=gint( i )
e
pi