How to search (find) and replace math terms like identity(3)

anthony Queen wrote: I am sorry, because I guess that my question is either very trivial (and I missed it), or without positive answer. I need to change in a Mathcad (v.11 still, but I tried also with v.15) a matrix dimension from 3 to 2. I have several equations, with "identity(3)" function, that needs to be corrected accordingly. I thought that the replace command would suffice to make a global change. Yet there is no way that Mathcad finds (both regions selected) the terms "identity(3)" in my worksheet, even if they are there. The culprit seems the bracket character. Is there a way to make the find/replace command work? Thanks.

I don't think there is, unless you feel like saving the file as an xmcd file and then using a text editor to find and replace instances of the corresponding xml strings.

The ability to search and replace on expressions has long been on my wish list - it ought to be possible for the user to just copy an expression, paste it to the find box and have Mathcad find the whole thing, including operators (such as +).

One of the things I've learned is to avoid hard coding numeric constants into my programs. I find it's far easier, both during development and maintenance, to define all constants using a variable.

Stuart

Maybe you could post an example and we can see if there is a way to automate what you are trying to achieve.

@^T [StuartBruff, Werner Exinger, Mike Armstrong]

Thanks for the great feedback. I liked the idea of Werner too, though admittedly it is not a good practice. But this comes from my initial bad design. I am still using MC v.11, so xml is not the standard format.

@Mike: I could uploaded my file, but in the essence I wanted to know how to handle a very simple case, like the one posted by Werner's image.

Thanks again.