_{Hello! I already have automatic numbering set up (to change paragraph numbers automatically when paragraphs are moved within a document) but I would also like to have automatic lettering within the same document that is independent from the numbering. Example, paragraph 1 references Exhibit A, paragraph 2 references Exhibit B, so on and so forth. Currently using the above referenced method, the auto numbering lettering then follows as if the letters are a representation of the corresponding number (if that makes sense), ex: 1 B 3 C 5 D. How do I have the number sequencing independent from the letter sequence? Thank you in advance! }

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**If {\displaystyle (a_{n})} is a sequence of complex numbers rather than a sequence of real numbers, this last formula can still be used to define convergence, with the provision that {\displaystyle |\cdot |} denotes the complex modulus, i.e. {\displaystyle |z|={\sqrt {z^{*}z}}} . If {\displaystyle (a_{n})} is a sequence of points in a metric space, then the formula can be used to define convergence, if the expression {\displaystyle |a_{n}-L|} is replaced by the expression {\displaystyle {\text{dist}}(a_{n},L)} , which denotes the distance between {\displaystyle a_{n}} and {\displaystyle L} .**

^{Yes, I have used this system in a multi-user setting. As noted, the key is to commit the record immediately after generating the sequence. However, if the application is one where there is very heavy transaction processing. In other words dozens of users creating records simultaneously, you might want to guard further against duplication. At the speeds computers process, it is not impossible that multiple users will grab the max value before it can be incremented and saved. }

Version control is one of the most critical elements of a document management system because it ensure users always have access to the most current version of a company document. This feature alone can cost justify the implementation of a document management system as it eliminates duplication of work and allows users to share the most current information on matters such as company policies or contracts.

*There are a number of ways to denote a sequence, some of which are more useful for specific types of sequences. One way to specify a sequence is to list the elements. For example, the first four odd numbers form the sequence (1, 3, 5, 7). This notation can be used for infinite sequences as well. For instance, the infinite sequence of positive odd integers can be written (1, 3, 5, 7, ...). Listing is most useful for infinite sequences with a pattern that can be easily discerned from the first few elements. Other ways to denote a sequence are discussed after the examples.*

^{It is not a specific requirement of the ISO 9001 or any other standard to uniquely identify a part or a document. It is more a common-sense measure, and a worldwide practice in any documentation system, to give a document or a component a number and a title, and to identify its revision level. As documentation titles, document numbering is an area for creativity and an opportunity for optimization. }

**For whatever reason, AllExperts did not let me post a direct reply to your response re: “Ok, what is the ControlSource of the Fixture Number control? It should be: =cboZone & “-” & Format(Me.FNumber,”000″)” and adding “Me.Refresh” to my code (within the last 10 minutes). It just had the “rate this reply”. I added the Me.Refresh and corrected my location of the =cboZone code and it works correctly now.**

**I am using Windows 10 and Lightroom Classic CC. Unlike many professional photographers who go on very specific shoots, when I travel, especially, I am shooting a wide variety of shots and in many different places. Thus, I find it most convenient to import my photos into Lightroom with only the most basic information -- metadata, and general keywords. Then when I have the time, I go through and sort the photos into subfolders, give them titles and more specific keywords. I also want to number these photos. Often, however, I will want to add more photos to a subfolder -- say my husband's photos taken at the same place. In Photoshop, these photos can be numbered so that the numbering sequence follows the photos in the same folder that have already been numbered.**

**Although sequences are a type of function, they are usually distinguished notationally from functions in that the input is written as a subscript rather than in parentheses, i.e. an rather than f(n). There are terminological differences as well: the value of a sequence at the input 1 is called the "first element" of the sequence, the value at 2 is called the "second element", etc. Also, while a function abstracted from its input is usually denoted by a single letter, e.g. f, a sequence abstracted from its input is usually written by a notation such as {\displaystyle (a_{n})_{n\in A}} , or just as {\displaystyle (a_{n})} . Here A is the domain, or index set, of the sequence.**

John, Sorry for the delay, but I was away last week with limited Internet access. I assumed if you had a Save button, you would know how to put code behind it. To see the code behind a button, Select the button in Form Design Mode and open the Properties Dialog (Right click and select properties), on the Events tab there should be something in the On Click event of the button. If you click the Ellipses […] next to the event, it will open Code Builder where you can enter the code.

**My advice on this topic is to decide on a file naming convention that is understandable and intuitive and that your IT resources agree will work for your system (some computer systems have limitations on file names, file structures, and how deep in to sub-directories files may be saved. Many times I haven't realized I had a problem until I tried to archive the directory structure (ISO9660 file naming rules, I think) to optical disk or learned that the backups have been failing because the directory name was something like Q:\antarctica\sub-zero_ice_station_outpost\human_resources\policies\prohibition_on_feeding_marshmallows_to_puffins-v1-01-02-2013.txt which exceeded the file system because the whole file path was 126 characters long. Another good reason to ask the computer folks for their opinion.**

An alternative to writing the domain of a sequence in the subscript is to indicate the range of values that the index can take by listing its highest and lowest legal values. For example, the notation {\displaystyle (k^{2})_{k=1}^{10}} denotes the ten-term sequence of squares {\displaystyle (1,4,9,...,100)} . The limits {\displaystyle \infty } and {\displaystyle -\infty } are allowed, but they do not represent valid values for the index, only the supremum or infimum of such values, respectively. For example, the sequence {\displaystyle (a_{n})_{n=1}^{\infty }} is the same as the sequence {\displaystyle (a_{n})_{n\in \mathbb {N} }} , and does not contain an additional term "at infinity". The sequence {\displaystyle (a_{n})_{n=-\infty }^{\infty }} is a bi-infinite sequence, and can also be written as {\displaystyle (...,a_{-1},a_{0},a_{1},a_{2},...)} .

I have done this twice now, getting flustered. The ticket part the person keeps has the correct sequential number on it, but the side that we keep has the same number on it for the whole page. What part am I missing, at first I did not uncheck the box, but this time I did but have the same number on the stub side that we keep with the person's name, etc