How do you set one column equal to another?

Question

how do i?
at cell B2 i would like to enter a number. in column C, i would like to have the same value for c2 through c11 cells. so, c2 through c11 i would like the value .2 in each cell. in column D, i would like the values found when columns B and C are multiplied. i would like the value of B3 to be the value found in D2, b4 to be the value found in D3, b5 to be value found in D4, etc.
is that possible to do using formula for columns? or something, well short of hand coding each cell.
thanks,
g.

Answer 1

let me try to clear up what i was asking, but no guarantees here.
i was trying to create a spreadsheet that would allow me to calculate the interest on an initial amount of money. i was a little frustrated when i wrote the post. i didn't understand how to do it using a construct like (D2:D20) = (B2:B20) * (C2:C20), which as far as i can tell is incorrect syntax, grammar, etc., just wrong. really wrong!
i'm not an accountant, as you can ready tell. i think though this is called simple interest.
ok, here's what i was looking to do, by way of an example:
given $1000 and an interest rate/ or rate of growth of 20% annually, calculate the amount of money one would have after 25 years. compounded annually.
$1000 * 0.20 = 200
$1200 * 0.20 = 240
$1440 * 0.20 = 288
$1728 * 0.20 = 345.60
$26,623.33 * 0.20 = 5,326.67
i realized what asked for was not this, well after i had posted and tried my post request by hand. so
i really understand the confusion.
i sure there is a built-in function for this, but i don't think i would have recognized it, because i don't know the financial terminology.
using the copying and pasting method, i built the first two line above and decided it had to be a better way, solving this kind of problem is what spreadsheet programs do... i copied B3 to cell B4, i copied cell C3 to cell C4, and i copied D3 to D4. copied and pasted. to my surprise, of course, because i had not read the manual completely, it copied the function to the cells and used the correct last values. (confusing here, but i hope you follow) after seeing that, i copied B4 and selected B5 - B21 and pasted, B4 to those selected B cells. i copied C4 and selected C5 - C21 and pasted, C4 to those C cells i had selected. that put 0.20 into each. i copied D4 and selected D5 - D21 and pasted to those selected D cells.
i seems to have worked.
i do have a question though. let's say instead of using 0.02 in column C i used 1.2. this would give me the amount of money i would have without having to add the initial to the interest made.
1000 * 1.2 = 1200
how do i assign the value, 1200, to another cell without using the copy and paste method? or is copying and pasting the way to do these kinds of things.
thanks everyone,
g.