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entered in the display as you perform those keystrokes. First, we present the
steps necessary to produce program CRMC.
Lists represent columns of the matrix
The program @CRMC allows you to put together a p×n matrix (i.e., p rows, n
columns) out of n lists of p elements each. To create the program enter the
following keystrokes:
Keystroke sequence: Produces:
‚ å «
„°@)STACK! @@DUP@ DUP
‚ é # ~ „n n
‚ å <<
1„°@)STACK! @SWAP 1 SWAP
„°@)BRCH! @)FOR@! @FOR@ FOR
~„j j
„°@)TYPE OBJ OBJ
ARRY@ ARRY
„°@)BRCH! @)@IF@@ @@IF@@ IF
~ „j# j
~„n n
„°@)TEST! @@@<@@@ <
„°@)BRCH! @)@IF@ @THEN THEN
~ „j #1+ j 1 +
„°@)STACK! L@ROLL ROLL
„°@)BRCH! @)@IF@ @END END
„°@)BRCH! @)FOR@! @NEXT NEXT
„°@)BRCH! @)@IF@ @@IF@@ IF
~„n#1 n 1
„°@)TEST! @@@>@@@ >
„°@)BRCH! @@IF@ @THEN THEN
1# 1
~ „n #1- n 1 -
„°@)BRCH! @)FOR@! @FOR@ FOR
~ „j # j
~ „j #1+ j 1 +
„°@)STACK! L@ROLL! ROLL
„°@)BRCH! @)FOR@! @NEXT! NEXT
„°@)BRCH! )@@IF@! @END@ END