suivant: Algebraic expressions
monter: Complex numbers
précédent: Multiplication by the complex
Table des matières
Index
Barycenter of complex numbers : barycentre
See also :
and
.
barycentre takes as argument two lists of the same size
(resp. a matrix with two columns):
- the elements of the first list (resp column)
are points Aj or complex numbers aj (the affixes of the points),
- the elements of the second list (resp column) are real coefficients
such that
![$ \sum$](img124.png)
0.
barycentre returns the barycenter point of the points Aj
weighted by the real coefficients
.
If
![$ \sum$](img124.png)
= 0, barycentre returns an
error.
Warning To have a complex number in the output, the input must be :
affixe(barycentre(...,...))
because barycentre(...,...) returns a point, not a complex number.
Input :
affixe(barycentre([1+i,1-i],[1,1]))
Or :
affixe(barycentre([[1+i,1],[1-i,1]]))
Output :
i
giac documentation written by Renée De Graeve and Bernard Parisse