Hello all. I feel more familar with Python now, and when I recently went back to reading the tutorial, I could actually read it without being overwhelmed by too much new detail. I've been staring at the specs for a python function for a while. I wrote one version of it and it worked. Then I changed the specs, and now need to reconstruct my original work. I'm sure I can do it fairly easily. I'm not asking anyone to write the function for me. It did occur to me that it could be a classroom exercise for other students. The current specifications for the function are: def incr(mult,z,zlim,mpylist): # mult is a vector of exponents for the multipliers in mpylist. # z is a positive odd integer. # zlim is the upper bound critical value for the sum of ( mpylist[k][0] * mpylist[k][1] ) # where kth multiplier is mpylist [k][0] # and kth multiplier index is mpylist [k][1] # function incr returns the next value of vector mult. # mult may be thought as a number written in a variable base. # mult[0] is the least significant and matches multiplier mpylist[0][0] # adding one to mult would mean adding 1 to mult[0] # unless doing so would make sum of multiplier * index exceed zlim. # in that case mult[0] is set to zero, and 1 is added to mult[1] # unless doing so would make sum of multilier * index exceed zlim # in that case, mult[0] and mult[1] is set to zero, # and 1 is added to mult[2] # unless . . .
# mult[0] is set to -1 to indicate that the largest possible value of mult has been exceeded. # mpylist[0][0] = 2 and all other multipliers in mpylist are odd. # mult[0], the index on multiplier 2, must not equal 1. It may equal zero, or any integer > 1, # provided the zlim constraint is met. _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
