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section z of routines in zroots.i

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functions in zroots.i - z

 
 
 
zroots


             zroots(a)  
 
     returns the vector of (complex) roots of the (complex)   
     polynomial: Sum(a(i)*x^(i-1)) using Laguerre's method.  
     The roots are sorted in order of increasing real parts.  Call with  
     non-zero imsort keyword to sort into increasing imaginary parts.  
     See Numerical Recipes (Press, et. al., Cambridge Univ. Press 1988),  
     section 9.5.  

interpreted function, defined at i/zroots.i   line 10