this is an update to my original question post \'Matlab assignment help\' and de

Question

this is an update to my original question post 'Matlab assignment help' and dealt with the "rescue.m" file in which I must change to incorporate functions and sub-functions as described previously 'see last question post'. I have split my question up since this is quite long and felt i needed to offer extra karma pts. thanks

this was hard to format so there are some lines that look kind of out of place, however this code is working 100% and is needed to create the rescue_main.m file also explained in my previous question.

Explanation / Answer

function rescue_main() clc; code_str=get_code(); if ~has_five_digits(code_str) disp(['Decoy message: Not a five-digit number.']); else digits = split_digits(code_str); iseven = sum_is_even(digits); if ~iseven disp(['Decoy message: Sum is odd.']); else rescueday=get_rescue_day(digits); isdayvalid=day_is_valid(rescueday); if ~isdayvalid disp(['Decoy message: Invalid rescue day.']); else rendezvouspt = get_rendezvous_pt(digits); point_validity = point_is_valid(rendezvouspt) if ~point_validity disp(['Decoy message: Invalid rendezvous point.']) else get_rescue_msg end end end end end function code=get_code() code=input('Please enter a code to break:','s'); end function is5digit = has_five_digits(code_str) is5digit = false; if length(code_str)==5 is5digit = true; end end function digit=split_digits(code_str) digit=code_str-'0'; end function iseven = sum_is_even(digits) sum1 = sum(digits); iseven = false; if mod(sum1,2)==0 iseven = true; end end function rescue=get_rescue_day(digits) rescue=digits(1)*digits(2)-digits(3); end function isvalid=day_is_valid(rescueday) isvalid = true; if rescueday < 1 || rescueday > 7 isvalid=false; end end function rendezvousPt = get_rendezvous_pt(digits) if digits(4)==digits(5) rendezvousPt=0; elseif digits(4) > digits(5) rendezvousPt=digits(5)+1; else rendezvousPt=digits(5); end end function point_validity = point_is_valid(rendezvousPt) if rendezvousPt == 2 || rendezvousPt == 7 || rendezvousPt == 8 point_validity = true; else point_validity = false; end end function nil = get_rescue_msg() disp(['Rescue on ' get_day_name(rescueday) ' at the ' get_point_name(rendezvouspt) '.']); end function day = get_day_name(rescueDay) if rescueDay == 1 day = 'Monday'; elseif rescueDay == 2 day = 'Tuesday'; elseif rescueDay == 3 day = 'Wednesday'; elseif rescueDay == 4 day = 'Thursday'; elseif rescueDay == 5 day = 'Friday'; elseif rescueDay == 6 day = 'Saturday'; elseif rescueDay == 7 day = 'Sunday'; else disp('Error in Rescue day!!!'); end end function point = get_point_name(rendezvousPt) if rendezvousPt == 2 point = 'fountain'; elseif rendezvousPt == 7 point = 'large tree'; elseif rendezvousPt == 8 point = 'bridge'; else disp('Error in rendezvous point!!!'); end end %%NOTE!! this function will give an error as the line 'rescueday < 1 || rescueday > 7' always gives an error. i merely copied from ur initial code so u might want to take a look at it. other than that the code is good

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