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Miscellaneous Pattern-Matching Examples

Decide what you think process is defined as in the examples below, and then find the answers at the end:

Example 1:

  a = 2; // this definition is not used
  f(a,b) = a+b;  // a is a formal argument that is used
  process = f(3,4); // see below for the answer

Example 2:

  a = 2; // this definition is used (not shadowed by formal arg)
  f(c*b) = a+b;
  process = f(3*4); // see below

Example 3:

  a = 2; // not used - shadowed by pattern variable
  f(a*b) = a+b;
  process = f(3*4);

Answers: 7, 6, 7


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``Audio Signal Processing in Faust'', by Julius O. Smith III.
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Center for Computer Research in Music and Acoustics (CCRMA),   Stanford University
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