Hello all,

I am currently in the process of making a program that computes the binomial theorem. I have decided to use lists to store all of the values. I have tried to make the program as "symbolic" as possible. For example, the user, read: myself, can type in an binomial expression and the calculator will parse the input into a few different custom lists, separating the input into terms, coefficients, variables and exponents. I am using the instring command along with certain numbers that I am using to symbolize what the user has typed in. After the program reads the expression into the first custom list, I would like to be able to remove any value that is equal to 71 or 72. I have read, Googled, youtubed etc. and have not had much luck in understanding how to remove unwanted numbers from a list and still keep the list in the previous order. As an example:

I would like to remove the 71 and 72 but still keep in the list in the order it is. The 71 and 72 are numbers that I am interpreting as parentheses.

Is there anyone who can walk me through how the statement

works?

I am using a TI-84 Plus Silver Edition with OS 2.55, with a built in seq command wizard.

If need, I will try to post the code I have thus far.

Thank you for your time.

I am currently in the process of making a program that computes the binomial theorem. I have decided to use lists to store all of the values. I have tried to make the program as "symbolic" as possible. For example, the user, read: myself, can type in an binomial expression and the calculator will parse the input into a few different custom lists, separating the input into terms, coefficients, variables and exponents. I am using the instring command along with certain numbers that I am using to symbolize what the user has typed in. After the program reads the expression into the first custom list, I would like to be able to remove any value that is equal to 71 or 72. I have read, Googled, youtubed etc. and have not had much luck in understanding how to remove unwanted numbers from a list and still keep the list in the previous order. As an example:

**Code:**`{71, 1, 69, 4, 72→ʟEXPR`

I would like to remove the 71 and 72 but still keep in the list in the order it is. The 71 and 72 are numbers that I am interpreting as parentheses.

**Code:**`{1, 69, 4→ʟEXPR`

Is there anyone who can walk me through how the statement

**Code:**`seq(list (X + (X≥N)), X, 1, dim(L1)-1`

works?

I am using a TI-84 Plus Silver Edition with OS 2.55, with a built in seq command wizard.

If need, I will try to post the code I have thus far.

Thank you for your time.