Question

Write an algorithm to print 10,9.... 1​

Answer 1

Explanation:

Here is how you could ask a programmable calculator to display numbers. In order to use this method, we first have to define a value that we will increment.

0 → X

This makes sure that we have zero in the variable X.

Now, write a statement to add one to this variable, and remember it.

X + 1 → X

When we use this statement on the home screen, it immediately shows us the new value.

Here is a screen showing how I initialized the variable with zero, then used the second statement to count from 1 to 4. Keep pressing Enter until you get as high as you want to go.

Of course, we could have put this into a program, but I’ll leave that for another time. Leave a comment if you have a calculator that can handle programs, and I’ll give you some ideas in that direction.

In general, though, we’d only use a PRINT (or DISP or similar) statement once to display the variable, then use statements before and after that statement to control what values of that variable were printed.

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