Dialog boxes to calculate functions

I am trying through the code below, to get a code that calculates separately arcsine, arrcos and natural Logaritm, by the user putting in an argument x. Then i want it to write out the answer in a msgbox.

I.e how do i get this conditional to what i chose from the three functions? If or what?

choice = menu('Choose an operation','arcsin', 'arccos', 'natural logarithm')

prompt = ('insert an argument: ')

answer = inputdlg(prompt)

h = msgbox(answer)

Answer 1

[DGM]

You'll get a numeric output from the menu call. Just do a switch-case structure, and calculate the answer using the corresponding function.

choice = menu('Choose an operation','arcsin', 'arccos', 'natural logarithm')
prompt = 'insert an argument: '; % don't need parentheses
arg = inputdlg(prompt); % the argument isn't the answer
arg = str2num(arg{:}); % convert it to numeric from cell

switch choice
    case 1
        answer = asin(arg);
    case 2
        % other thing
    case 3
        % other thing
end

then just display the answer