In MATLAB, pause
interrupts execution of a loop until the user strikes a key, and pause(<n>)
pauses for <n>
seconds before resuming execution.
Here’s my attempt at a pause() function for Maxima that works in a similar way to MATLAB. It uses Maxima’s read() to stop everything and wait for user input, and it uses the lisp function sleep to stop for a fixed number of seconds.
**note that a lisp function
can be called inside Maxima as
I’m not happy that in order to resume after the pause, the user needs to enter a valid character (space or nothing results in an error) followed by CTRL-SHIFT. I hope to either figure something else out or even better hear suggestions from other Maxima users!
if tsecs=0 then
read("Execution Paused...enter any character then CTRL-ENTER")
disp(sconcat("paused for ", tsecs," seconds")),
call this either as
or, for a three second pause
**Update** I didn’t find it it in documentation for quite a while, but there is a built-in Maxima function matrix_size() in the package linearalgebra that does what this little one-liner does**
I really wanted a Maxima function that works something like MATLAB size() to easily determine the number of rows and columns for a matrix In Maxima, length(M) gives the number of rows, and so length(transpose(M)) gives the number of columns. I put those together in a little widget matsize() that returns the list [m,n] for an matrix