# Writting A Simple Formula Program

3 replies to this topic

### #1 caleb

caleb

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Posted 16 October 2010 - 09:49 PM

I'm trying to write a program to calculate the present value of the CCA tax shield. I remember in high school we'd use our graphing calculators to program in painstaking formulas so that the calculator would just ask for the variables and then do the work.

The formula is as follows (entering by text didn't really display right, so I used an image):

Now it's been a long time but on the texas instrument calculator the program be essentially "Get X, Get Y etc. etc." then it computes it at the end. On the screen when you ran a program it would prompt "X?" then "Y?" etc. etc.

Is it possible to something like this on the Casio?

I don't expect anyone to to it for me but I don't know where to start. Any direction?

### #2 caleb

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Posted 17 October 2010 - 01:24 AM

Actually I think I figured it out:
"Enter C"?->C
"Enter D"?->D
"Enter Tc"?->T
"Enter R"?->R
"Enter S"?->S
"Enter N"?->N

R*(1-T)->K

((C*D*T)/(K+D))->W
((1+(.5*K))/(1+K)->X
((S*D*T)/(K+D))->Y
1/((1+K)^N)->Z

(W*X)-(Y*Z)

Probably not the best coding but I get the right result

### #3 Guest_A_*

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Posted 24 March 2011 - 05:51 PM

Hi, I am looking for a PVCCATS formula to load on my calculator (CASIO fx-9750G PLUS), do you know how I can do that?
I also i tried inputting the above program code and it didn't work for me, could you please tell me how i can correctly enter the formula into the calculator?

Thank you so much in advance.

### #4 Guest_just me_*

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Posted 03 April 2011 - 02:35 AM

Hi, I am looking for a PVCCATS formula to load on my calculator (CASIO fx-9750G PLUS), do you know how I can do that?
I also i tried inputting the above program code and it didn't work for me, could you please tell me how i can correctly enter the formula into the calculator?

Thank you so much in advance.

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