[Scilab-users] Help Required to Remove Computation Bugs in Bode: Scilab 6.0.0

[AOFW]

I am exploring Scilab for use in control analysis and design for teaching and
academic research. 

I executed a number of examples listed in the Help for Bode and Black under
the frequency response topic. 

Below are the errors that came up - only two examples are listed here for
illustration. The question is why these errors ? I am running Scilab 6.0.0
[64-bit] on Windows 10. I have searched the Archives and did not find
anything and hence this post: 

Example 1:

--> s = poly(0, 's'); 

--> h = syslin('c', (s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01)); 

--> 

--> clf(); bode(h, 0.01, 100); 

Recursion limit reached (1000). 

Example 2:
--> //Black diagram 

--> s=poly(0,'s'); 

--> sl=syslin('c',5*(1+s)/(.1*s.^4+s.^3+15*s.^2+3*s+1)) 
 sl  = 

                              
           5 + 5s             
   ------------------------   
               2   3      4   
   1 + 3s + 15s + s + 0.1s   


--> clf();black(sl,0.01,10); 
at line    38 of function black ( C:\Program
Files\scilab-6.0.0\modules\cacsd\macros\black.sci line 51 ) 
at line     2 of function black (
C:\Users\Almoruf\AppData\Roaming\Scilab\SCILAB~2.0\atoms\x64\iodelay\04B097~1.6\macros\black.sci
line 12 ) 

Invalid index. 



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