Hp 49g Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 200)

• START (start, end') code NEXT

Runs code, increments start. Repeats imtil start > end. The code is

always nm at least once.

® START {start, end) code STEP (incr)

Runs code, increments stmt by the number specified by incr. {incr can

be an expression.) Repeats imtil start > end. The code is always rim at

least once.

• FOR {var, start, end) code NEXT

Rims code, sets var to start. Increments var, and repeats until var >

end. This is similar to START... NEXT except that you can use var in

your code.

• FOR {var, start, end) code STEP finer)

Runs code, increments var by the niuuber specified by inrr. {incr can

be an expression.) Repeats imtil start > end. This is similar to START

... STEP except that you can use var in your code.

• DO code UNTIL comparison END

Rims code, then tests to see if comparison evaluates to true. Ends if it

does. Repeats code if it does not. The code is always ran at least once.

• WHILE comparison REPEAT code END

Checks if comparison evaluates to true. Runs code if it does. Repeats

until test returns false. This is similar to DO ... UNTIL except that code

is not nm if comparison evaluates to false the first time.

Example

The following example processes a list of muneric values that is stored in

a variable named MARKS. It performs the following:

• It determines the number of elements in the list.

• For each element in the list, the program compares tire element to the

pass value:

a. If the element is greater than or equal to the pass value, inserts

“Pass” after the value.

b. If the element is less than the pass mark, inserts “Fail” after the

value. Note that this converts the value to a string.

« It replaces the original value with the string.

Page 10-14 Introduction to programming

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Hp 49g Graphing Calculator Manuel d'utilisateur Page 200