Incorrect use of '='

disp('Ingrediants ID#');

disp('eggs: 10');

disp('avocado: 21');

disp('2 bread slices: 32');

disp('peanut butter: 43');

disp(' cup of spinich: 54');

disp('1/4 tbs of butter:65');

disp('slices of cheese: 76');

n = input('how many ingredients do you have');

%%FOOD INPUT

for k = 1:n

a(k) = input(sprintf('Type code of Ingrediant #%d: ',k ));

A(k) = input(sprintf('Type quantity of Ingrediant #%d: ',k ));

end

%%EGGAVOCADOSANDWICH

if (a(k) = 10)

elseif(a(k) = 21)

elseif (a(k) = 32

eggsandwich = (a(1)*A(1))+(a(2)*A(2))+(a(3)*A(3));

if eggsandwich >= 63

disp('egg avocado sandwich');

end

end

end

I am trying to have 3 conditions met by putting in a food ID number, once those three ID numbers are met, then it can proceed the formula displayed above. If it anser is above a certain number it would display that food.

'Incorrect use of '='. To assign a vlaue to a variable, use '=' . To compare values for equality, use '=='.

Answer 1

[Fangjun Jiang]

use "==" for equal compare. It is in the error message.

[Jarren Berdal]

now reads ' invalid expression

[James Tursa]

Show your current code. The comparisons should be a(k)==10 etc.