Solve Block works with MCad 2001 but not with 15

[ptc-4310378]

I just loaded MCad 15 and opened a file created with MCad 2001.

In the attached file on page 6, the Solve Block is flagged with and error message: "Something is wrong with the solve block used to define this function".

The same solve block works fine in 2001.

What rule am I breaking here for the block not to be functional in 15?

Thank you.

[VladimirN]

I edited your worksheet. Please see the attachment.

[ptc-4310378]

Thank you Vladimir.

I see that the Solve Block is now functional, great,.....but I haven't been able to figure out what you have edited....!?

[VladimirN]

Here, you'll need to use in the solve block Given-Find a lettered index. In Mathcad there are two types of indices:

1) An array index - introduced with the panel of the matrix and is used, for example, for an array element.

2) Lettered index ("literal subscript operator") - is inserted through the "." 'and is part of the variable name.

[ptc-4310378]

спасибо

[VladimirN]

пожалуйста

[VladimirN]

I also want to note that Mathcad 15 has the option to compare the documents and finding the differences between them "Compare Worksheets" (in main menu go to "Tools" -> "Compare Worksheets"):

[ptc-4310378]

Very useful feature. Thanks for the tip.

[VladimirN]

You're welcome.

[AlanStevens · Accepted solution]

Vladimir has beaten me to it, but I'll attach my solution anyway as it contains some words of explanation.

Alan

[ptc-4310378]

Thanks.....no wonder I had trouble tracing Vlad's "cosmetic" improvements. Much appreciated.

[VladimirN]

AlanStevens wrote:

Vladimir has beaten me to it...

.