### 2.9.2 Usual infixed functions on reals : `+,-,*,/,^`

`+,-,*,/,^` are the usual operators to do additions, substractions, multiplications, divisions and for raising to a power.
Input :

`3+2`

Output :

`5`

Input :

`3-2`

Output :

`1`

Input :

`3*2`

Output :

`6`

Input :

`3/2`

Output :

`3/2`

Input :

`3.2/2.1`

Output :

`1.52380952381`

Input :

`3```^```2`

Output :

`9`

Input :

`3.2```^```2.1`

Output :

`11.5031015682`

Remark
You may use the square key or the cube key if your keyboard has one, for example : `3``2` returns 9.

Remark on non integral powers

- If x is not an integer, then ax=exp(x ln(a)), hence ax is well-defined only for a>0 if x is not rational. If x is rational and a<0, the principal determination of the logarithm is used, leading to a complex number.
- Hence be aware of the difference between (a)1/n and a1/n when n is an odd integer.
  For example, to draw the graph of y=∛x3−x2, input :
  `plotfunc(ifte(x>0,(x```^```3-x```^```2)```^```(1/3),
  -(x```^```2-x```^```3)```^```(1/3)),x,xstep=0.01)`
  You might also input :
  `plotimplicit(y```^```3=x```^```3-x```^```2)`
  but this is much slower and much less accurate.