Topic: (challange - newbie) in between two numbers

[JohnK]

I want a way to see if a number is inbetween to numbers.
For example:
Is the number 4 inbetween the numbers 2 89?

Write a lisp that will tell me. The lisp should return either "T" or "nil"

Rules: Make a post when you have your lisp complete. After three hours we will post our lisp solutions.

[Keith™]

I can name that tune in 23 characters.... of course I am not a newbie ..

[whdjr]

Ah man.  Why you gotta go put rules on this one?

[CADaver]

I can name that tune in 23 characters.... of course I am not a newbie ..

Are you counting spaces?

[dubb]

are there any hints...?

[JohnK]

Sure dubb, Use a logical test.

[Keith™]

I can name that tune in 23 characters.... of course I am not a newbie ..

Are you counting spaces?

Counting spaces

[JohnK]

Okay, anyone done yet?

[whdjr]

Code: [Select]

(defun inbetween (num1 num2 num3)
  (and (> num1 num2)
       (< num1 num3)
  )
)

Here's mine.

[Kerry]

< post deleted >

[JohnK]

Outstanding!

Why did you choose "and"?

[whdjr]

Outstanding!

Why did you choose "and"?

Because with and they both have to be true or it's false.
You did ask for a T or nil answer.

[Keith™]

Optimized for size ... functionalized ... essentially the same as Will's ...

Code: [Select]


(defun inbetween (@t @l @u)
  (and(< @l @t)(> @u @t))
)


[Kerry]

< post deleted >

[JohnK]

Because with and they both have to be true or it's false.
You did ask for a T or nil answer.

Aweosme!

Now, Can you tell me any problems you might see with this procedure the way it is?