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

+,-,*,/,^ are the usual operators to do additions, subtractions, 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 : 32 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.