How create a calculator function ?

Create a function calculator() that has as input: a: number; b: number; t: textfield containing the mathematical function to perform. The functions to calculate are: “+” “-“ “*” “/”. If another type of function is inputted (e.g. “^”) the output should be NaN. Tip: to verify a text you can use the function “strcmp”. You will also have to use an “if else” statement in your code. Create a proper header.

How do you do this?

[Guillaume]

• Start your editor
• Write the code (read through your course notes)
• Save the file

More seriously, nobody is going to do your homework for you. If you have a specific problem, we'll be happy to help you, but you need to come back with a much narrower question and with details of what you've tried.

[Image Analyst]

http://www.mathworks.com/matlabcentral/answers/8626-how-do-i-get-help-on-homework-questions-on-matlab-answers

[James Tursa]

Contributors to this site are willing to help, but are generally not willing to do your homework for you. Please make an attempt and if you can't get it working, post your code and ask specific questions about your code and we will help.

Answer 1

[Rick Rosson]

Here is a start:

   function y = calculator(a,b,t)
   % Insert your header comments here
   %
   %

        % insert your MATLAB code here:

   end

[John D'Errico]

Oh, gosh. That gives the whole thing away. :)

Answer 2

[sths]

a=4
b=2
if strcmp(t,'+')
y(a,b)=6
elseif strcmp(t,'-')
y(a,b)=2
elseif strcmp(t,'*')
y(a,b)=8
elseif strcmp(t,'/')
y(a,b)=2
elseif strcmp(t,'^')
y(a,b)=NaN
save(calculator,a,b,t)
function y = calculator(a,b,t)

What am i doing wrong here?

[Vennmukhil T]

Function keyword use is actually invalid