"Write a Racket function sin-digit that consumes a 9-digit number and an integer between 1 and 9, inclusive,
and produces the digit at the specified location. Position 1 corresponds to the left-most digit, and position 9 to the
right-most digit (the one's digit). For example, (sin-digit 463290115 1) = 4, (sin-digit
463290115 6) = 0, (sin-digit 463290115 9) = 5. You may assume that the digit at position 1 is
non-zero. "

1) Do not even understand the question. 2) Cannot use "cond".

Question

"Write a Racket function sin-digit that consumes a 9-digit number and an integer between 1 and 9, inclusive, 
and produces the digit at the specified location. Position 1 corresponds to the left-most digit, and position 9 to the 
right-most digit (the one's digit). For example, (sin-digit 463290115 1) => 4, (sin-digit 
463290115 6) => 0, (sin-digit 463290115 9) => 5. You may assume that the digit at position 1 is 
non-zero. "

1) Do not even understand the question. 2) Cannot use "cond".

airdawg5571 · Answer

see here: http://openstudy.com/groups/computer+science/updates/4e8a44840b8b543d41ee19fa