suivant: Usual prefixed functions on
monter: Real numbers
précédent: Eval a real at
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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 : returns 9.
Remark on non integral powers
- If x is not an integer, then
ax = exp(x&sstarf#star;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
and
a
when n is an odd integer.
For example, to draw the graph of
y = , 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.
suivant: Usual prefixed functions on
monter: Real numbers
précédent: Eval a real at
Table des matières
Index
giac documentation written by Renée De Graeve and Bernard Parisse