newbie trying to write a program (TI-85 plus CE)

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Forum Attachments

Summary:

problem with my program

newbie trying to write a program (TI-84 plus CE)

06Mongoose 06 Jul 2018 07:46

so im diver trying to write a program on my calculator but having some problems, and yes I am new at it. im figuring its going to be somewhat lengthy and I wrote It on connect but I don't even know how to post a picture on here to show you what I have lol.
ClrHome
Disp "Welcome to Paul's RDP"
Disp "Enter Depth"
Input "Depth",D
Disp "Enter Time"
Input "Time",T
If D≤10 and T≤57
Then
Disp "Your Repet Letter is 'A'"
If D≤10 and 58≤T≤101
Then
Disp "Your Repet Letter is 'B'"

first off theres going to be wayyyyyy more to it, but after this it will be repetitive. but to start, when running the first half I get an answer of line 9 and 12 at the same time(a and b). if I meet the conditions of the second half I don't get an answer. same goes if I change the complex part of part 2 to an "or" statement. im not all up on programming and such and this is all listed in a book that I usually forget at home but always have my calculator for other applications.

Last edited on 06 Jul 2018 07:47 by 06Mongoose Show more

Re: newbie trying to write a program (TI-84 plus CE)

Trenly 06 Jul 2018 11:58

I reccomend looking at the if command page. Below I have summarized what I believe to be the issue.

• When using “Then” following an if, you must include an “End” to terminate the block

Example:

If A
Then
Do this
And this
End
If B
Then
Do this instead
And this too
End

Otherwise it will be treated as a nested if statement

If A
Then
Do this
And this
  And If B
  Then
  Do this too

Re: newbie trying to write a program (TI-85 plus CE)

06Mongoose 06 Jul 2018 15:49

I’ll try that, I was also thinking that some of the problem may be that in the first part it display A is less than 57. In the second half it says to display B of least than 101. With A being less than 57 and less than 101 it displays A and B. Does that make sense??? Is there a way to specify a range without using less than or greater than???

Re: newbie trying to write a program (TI-85 plus CE)

kg583 06 Jul 2018 16:08

TI-Basic doesn't allow chained conditionals. The line

:If D≤10 and 58≤T≤101

must be written as

:If D≤10 and 58≤T and T≤101

to achieve the desired result. Otherwise, it is evaluated as

:If D≤10 and (58≤T)≤101

where (58≤T) is either 0 (false) or 1 (true), both of which are less than 101.

---

The solution to a complex problem is often a simple answer.

Last edited on 06 Jul 2018 16:14 by kg583 Show more

Re: newbie trying to write a program (TI-85 plus CE)

Trenly 07 Jul 2018 03:42

It could also be written as:

If (D≤10)(58≤T)(T≤101