Owner's Manual

SGN (X)

This function will give the value of +1 if X is positive, 0 if X is zero, and -1 if X is negative.

So SGN(4.3)=1; SGN(0)=0; SGN(-276)=-1

Example:

A=6 press Enter

PRINT SGN (A); SGN (A-A) press Enter

1 0

INT (X)

This converts arguments which are not whole into the largest whole number below the

argument. So INT (5.9)=5; also INT (-5.9)=-6. Note that with negative arguments, the

absolute value of the result returned by INT will be greater than that of the argument.

Example:

PRINT INT (-6.7) press Enter

-7

RND (X)

This will produce a random number between 1 and X if X is positive.

Example:

PRINT RND (19) press Enter

You will get a number between 1 and 19. RND (0) will give you a number between 0

and 1.

Note:X cannot be negative.

STRING FUNCTIONS

We can also use functions to act on strings. Have a look at the following:

Note: From now on, the Enter key sign will be deleted for simplicity. Remember to

press the Enter key after each line of entry.