[Scilab-users] slash (/) help page confusing ?

[philippe]

Hi

before scilab6 there was some ambiguity between 1/B=1./B=(1.)/B  since
1. = 1 for floating point real numbers. We can see that this problem is
solved now :


--> B=1:3
 B  =

   1.   2.   3.


--> 1./B
 ans  =

   1.   0.5   0.3333333


--> 1/B
 ans  =

   0.0714286
   0.1428571
   0.2142857

but in the help page it is written that "X=A/B is the solution of X*B=A"
this false for  A=1  and B=1:3  as you can see :


--> B*(1/B)  // =1 !!!!
 ans  =

   1.


--> (1/B)*B  //  should be 1 ?
 ans  =

   0.0714286   0.1428571   0.2142857
   0.1428571   0.2857143   0.4285714
   0.2142857   0.4285714   0.6428571

but this is true for general matrix

--> A=[1 2 ; 3 4]
 A  =

   1.   2.
   3.   4.


--> B=[4 5 ; 6 7]
 B  =

   4.   5.
   6.   7.


--> B*(A/B) // sould be A ?
 ans  =

   17.5  -8.5
   25.5  -12.5


--> (A/B)*B // =A
 ans  =

   1.   2.
   3.   4.


this looks confusing ?

Best regards,
Philippe