How do I store user input values from a for loop into a matrix for summation.
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I have to create a code that asks the user the ammount of an item, then create a for loop from the user inputted ammount, in the for loop ask the user the cost of the product, then add all the for loop instances together.
ammBooks = input('How many textbooks will you be purchesing today? ');
while ammBooks <= 0 || mod(ammBooks,1) ~= 0 || ammBooks > 10
fprintf('If you are purchasing books today please input a number larger than zero.\n')
ammBooks = input('How many textbooks will you be purchesing today? ');
while ammBooks > 10
fprintf('You may only purchase less than ten books per transaction.\n')
ammBooks = input('How many textbooks will you be purchesing today? ');
end
while mod(ammBooks,1) ~= 0
fprintf('You are unable to purchase a non whole number ammount of books.\n')
ammBooks = input('How many textbooks will you be purchesing today? ');
end
end
bookmatrix = zeros(1, ammBooks)
if ammBooks > 1
for diff = 1: ammBooks
bookCost = input('how much does your book cost? ')
for x = 1:size(bookmatrix,1) %loop over 100 rows
bookmatrix(x,:) = (1,ammBooks) %insert 10 random numbers
end
end
end
bookmatrix
采纳的回答
Voss
2022-2-25
How about this?
ammBooks = input('How many textbooks will you be purchesing today? ');
while ammBooks <= 0 || mod(ammBooks,1) ~= 0 || ammBooks > 10
while ammBooks <= 0
fprintf('If you are purchasing books today please input a number larger than zero.\n')
ammBooks = input('How many textbooks will you be purchesing today? ');
end
while ammBooks > 10
fprintf('You may only purchase less than ten books per transaction.\n')
ammBooks = input('How many textbooks will you be purchesing today? ');
end
while mod(ammBooks,1) ~= 0
fprintf('You are unable to purchase a non whole number ammount of books.\n')
ammBooks = input('How many textbooks will you be purchesing today? ');
end
end
bookmatrix = zeros(1, ammBooks);
% if ammBooks > 1
for ii = 1: ammBooks
bookmatrix(ii) = input('how much does your book cost? ');
% for x = 1:size(bookmatrix,1) %loop over 100 rows
% bookmatrix(x,:) = (1,ammBooks) %insert 10 random numbers
% end
end
% end
total_cost = sum(bookmatrix);
fprintf('Total cost of books is %.2f.\n',total_cost)
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