Referring to the Last Result

The most recent answer provided by AutoMathic becomes the new default referent of a pronoun such as "that":

> How much is Pi over two?

   (Find 3.14159/2)

   1.570795 is PI OVER TWO.

Anything else?

> What's 7.5% of that?

   (Find 7.5(1.570795)/100)

   0.117809625 is 7.5 % OF THAT.

This behavior allows calculations to be done piecemeal, building-up results bit-by-bit to see and use intermediate values:

Anything else?

> What percentage of Pi is that?

   Let 'P' stand for "PERCENTAGE"

   (Find P)

   Solving for P:

       P 3.14159             
      --------- = 0.117809625
          100                

         3.14159             
       P ------- = 0.117809625
           100               

       P 3.14159 = 100 (0.117809625)

     P (3.14159) = 100 (0.117809625)

                   100 (0.117809625)
               P = -----------------
                        3.14159    

       P = 3.75 (or 15 / 4, or 3 & 3 / 4)

   3.75 (or 15 / 4, or 3 & 3 / 4) is THE PERCENTAGE.

Note that even though AutoMathic introduced its own noun, "PERCENTAGE", and the user referred to a pseudo-noun, "Pi", their appearance did not supersede the user's intended referent, the last result.  Similarly, other "generic" nouns ("number", "amount", "fraction", "quantity", "part", "portion", "multiple", and well-known constants) do not supersede the user's specific nouns as referents of a pronoun.

Referring to the last result with a pronoun is a very simple way to pose follow-up questions.  Follow-up questions in general are the topic of the next section.