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Additional Tidbits of Information

Naming a List:
You may create your own names for lists. 
Highlight L1.  Choose INS (2nd DEL).  Enter the name up to 5 letters.  Press ENTER.   L1 will not be lost, a new list will be created.  To transfer the data from L1 to the new list, highlight DAYS, enter L1, press ENTER.

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To delete this new list – highlight DAYS and press DEL.  This will remove the column listing but not the list from memory.  To delete the list from memory, choose 2nd MEM, #2 Mem Mgmt/Del, #4 List, arrow down to DAYS, and press DEL.

If L1 - L6 disappear from your listings:
If any of your lists, L1 through L6, should disappear from your columns, choose STAT, #5 SetUpEditor.  This will restore all lists L1 through L6.  It will not remove data in residence.
 

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To Automatically Fill a List:
(when the entries are the result of the evaluation of an expression)

Highlight L1. Choose LIST (2nd STAT).  Choose OPS from the top.  Choose #5 seq( .  Type (x, x, 0, 10, 1) to automatically generate numbers from 0 to 10. The parameters are (expression, variable, begin, end, increment).
 

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Other Valuable Options from the OPS menu:
#4 Fill( - replaces each value in a list with a constant value - Fill (8,L3) will fill L3 with 8s.  If L3 is empty you will need to dimension the list first so that the calculator knows how many constants to create.
                       5→dim(L3) tells the calculator that L3 will contain 5 values.

#6 cumSum( - returns cumulative sums of the elements in the list, starting with the first element - If L1 contains {1,2,3,4,5}, then cumSum(L1) will return {1,3,6,10,15}
 
To Add the Entire List:
From the home screen, choose LIST (2nd STAT).  Choose MATH at the top. Option #5, sum(, will add all of the elements in the list.               
                                                sum(L1) will add all of the elements in L1.
 
To Create a Dynamic List: (a list in L2, based upon L1, that will change automatically when L1 is updated.)
     Create L1 to contain the prices {12.95, 34.50, 50, 15.75, 67, 24.95}.
     Create L2 to contain the 8% sales tax on each of these prices.
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Using the quotes (ALPHA +) when entering the formula for L2 will create a dynamic situation where L2 will automatically update when L1 changes.  Notice the marker placed at the top of L2 designating that this list is dynamically created.

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 Now, if 12.95 in L1 is changed to 19.95, the sales tax in L2 is automatically updated.

 

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