"To Workspace" block rounding numbers

I am trying to extract the final values from a Simulink simulation so that I can take to a Spreadsheet. However, when I use the "To Workspace" block, it is rounding my numbers and missing a lot of significant figures - is there a way to fix this or an alternative approach to extracting the final data point without rounding?

[John D'Errico]

Are you positive this is not just a question of display precision, instead of how the number is actually stored? For example...

pi

ans = 3.1416

And, yes, unless you are on a school board in some districts, you know that is not the true value of pi. (And, if you are on a school board, you probably think pi is only 3 anyway.) In fact, MATLAB stores approximately 16 decimal digits in floating point. (52 binary bits, if you wish.)

num2str(pi,20)

ans = '3.141592653589793116'

The final 3 digits of that result are incorrect as I recall.

You can see more digits in MATLAB, merely by use of the format command.

format long g
pi

ans = 
          3.14159265358979

[Mathieu NOE]

I don't believe there is a problem with the "To Workspace" block itself , by default it should be a double precision format unless you have a different data format - pls double check your data format that you export.

supported Data Types : Boolean | bus | double | enumerated | fixed point | half | integer | single | string

in this simple demo I just store the last value (red rectangle) of my sine wave

what you see on matlab command window depends of the format (display) option - as already explained above by John.

format - Set output display format - MATLAB

because the default format may be "short" , you only see the first digits after the comma , but the number is still stored with maximal numerical precision (according to your data format )

out.simout.Datas = -0.5440 (matlab command window display with standard "short" format)

let's see more digits :

num2str(out.simout.Data,20) = '-0.54402111088936977445'