Error on Beginner Code (Tax Calculation)

Hi! I am brand new to matlab and need some help with this code. I am trying to create a code that asks for the user's net income, calculates the tax, and displays the amount. There is no tax on the first $15,000 of the net income, 5% on every dollar between $15,001-25,000, and 10% tax on every dollar above $25,000. I know that using t=tax is causing the error, but I don't know how else to write the code. Any ideas on how to fix this?

Here is what I have so far:

x = input(‘Enter your net income: ‘);
t = tax
if x<=15000
	t = 0
elseif x>15000 && x<=25000
	t = (x-15000) * 0.05
elseif x>25000
	t = (x-25000) * 0.1
end 
disp(‘Your tax is’ num2str(t))

[Guillaume]

It's unclear what you're trying to do with the line

t = tax

which would assign the value of the non-existant variable tax to t.

Also, I would recommend you look at the examples in the disp documentation or learn how to construct text.

[Julia O'Bryant]

I am just confused because when I do not define t before my if statements, matlab says that t is an undefined variable. I do not know what to define it as or how to write the program so that t is not needed.

[Guillaume]

You'll have to explain better the problem, since when I run this code (the same as your minus the t = tax line) I get no error (for valid values of x):

x = input('Enter your net income: ');
if x<=15000
	t = 0
elseif x>15000 && x<=25000
	t = (x-15000) * 0.05
elseif x>25000
	t = (x-25000) * 0.1
end 

You will indeed get an undefined t if none of your if tests are true (which may be the case if x is non-scalar or x is NaN

Answer 1

[Karthick S]

x = input('Enter your net income:');

if x<=15000

t = 0;

elseif x>15000 && x<=25000

t = (x-15000) * 0.05;

elseif x>25000

t = ((x-15000) * 0.05)+((x-25000) * 0.1);

end

disp(sprintf('Your tax is %s', num2str(t)));