Do NOT hand in printouts of your C code. List the afs path (e.g. ~choset/gr04/matvec) of your executeable (please compile the program) and make sure the TA's can access it (putting it in your public directory is one option)

• Program: Matrix-Vector Evaluator
  Write a program that runs under unix to perform 3x1 vector and 3x3 matrix arithmetic. The program should take from standard input one line at a time a sequence of expressions, described below. A line with nothing on it should do nothing. The command END should terminate the program. Hand in the afs path of the compiled and source code. The following are the commands to be defined:
  • Vector and Matrix instantiation.
    For vectors, a lower case letter followed by an ``='' sign, and then followed by three numbers sets the value for the vector. For matrices, an upper case letter, followed by an ``='' sign, and then followed by nine numbers sets the value for a matrix. To make things easier, assume there could only be 26 vectors and 26 matrices. Hint: there is a nice relationship between chars and ints in C.
  • Printing.
    A vector or matrix on a line by itself followed by return should print the vector or matrix in their appropriate forms.
  • Addition.
    c = a + b ------ store the sum of a and b into c.
    C = A + B ------ store the sum of A and B into C.
    
  • Multiplication
    c = a.b ----- should compute the dot product of a and b and store in it in the first component of c
    c = a*b ----- store the cross product of a and b in c
    C = A*B ----- perform matrix multiplication of A and B
    v = M*x ----- perform the matrix-vector multiplication.
    
  
  
• Find a picture of a robot, not from Carnegie Mellon, on the web and display it. Comment on its application in terms of sense, plan, and act. As a student of Carnegie Mellon you get free webspace, click here to find out how to use it.