Please help with this function

Create a function called translate(dx,dy). Be sure your function suppresses all output, as we will want to use it later inside a large for loop. This function should return the matrix:

T = [1 0 dx]
    [0 1 dy]
    [0 0  1]

I am not sure how to get started with this, the function throws me off, please help.

Answer 1

[Guillaume]

It would be difficult to come up with an easier assignment. I assume you've been told how to create a function and if not, searching for function in the doc would have told you how.

The assignment requires writing three lines of code only. Try harder.

[Pauline Li]

Not that I have not tried, I could not come up with a code that runs. This is what I have so far.

>>function T=translate (dx,dy)

>>T=[1 0 dx; 0 1 dy; 0 0 1];

>>end

[Stephen23]

@Pauline Li: your code concept is fine, but it is not possible to define a function like that in the command line. It must be defined in a file (with the same name as the function).

[Pauline Li]

I understand, I have the script named after the function, however I keep getting not enough input arguments.

[Stephen23]

Do not click the green "Run" button. This is a pointless button that confuses all beginners. You can call your function from the command line and supply it with the required two input arguments, e.g.:

 translate(2,5)

[Guillaume]

Note that the documentation that I linked in my answer explained both of these issues in the first few lines:

This type of function must be defined within a file, not at the command line. [...]

You can call the function from the command line, using the same syntax rules that apply to functions installed with MATLAB.