Environment for creative processing of text and numerical data

Exact value of Y1 in previous example

Beginning status (before activation):

   1 *
   2 *In the previous second degree equation, an approximation of the
   3 *imaginary part of the roots was obtained as Y1=2.783882181415
   4 *We can infer the "exact" value with the INTREL command of Survo:
   5 *INTREL Y1  
   6 *
   7 *
   8 *
   9 *

Ending status (after activation):

   1 *
   2 *In the previous second degree equation, an approximation of the
   3 *imaginary part of the roots was obtained as Y1=2.783882181415
   4 *We can infer the "exact" value with the INTREL command of Survo:
   5 *INTREL Y1  
   6 *X=Y1 is a root of 4*X^2-31=0
   7 *
   8 *From the result we see that Y1=sqrt(31)/2 or sqrt(-D)/(2*A).
   9 *

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