Question

USING MATLAB

1. Create a series of if/elseif statements that check which coin is entered, and sets the variable value to be the correct value of the coin. The following are the cases to consider:

1. If coin equals ‘q’, then value equals 25
2. If coin equals ‘d’, then value equals 10
3. If coin equals ‘n’, then value equals 5
4. If coin equals ‘p’, then value equals 1
5. Otherwise, if the coin is none of the above, add a default else statement that sets value to 0

2. To test the code, you can run the following command in the MATLAB command line:

get_coin_value(‘q’)

You should see the number 25 pop up. To try with other coins, change the ‘q’ to ‘d’,’n’ or ‘p’. Also try replacing the ‘q’ with ‘not a coin’. A zero should be displayed when an invalid coin is entered.

Answer 1

function get_coin_value(coin)
value = 0;
# if else statment to set value as per passed parameter
if coin == 'q'
    value = 25;
elseif coin == 'd'
    value = 10;
elseif coin == 'n'
    value = 5;
elseif coin == 'p'
    value = 1;
else
    value = 0;
endif
disp(value); # print the value
endfunction