Activities/Turtle Art/Tutorials/Stack Programming: Difference between revisions

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-The Forth programming language uses a stack for computations.
+== Turtle Art/Tutorials/Stack Programming ==
-On the right of the screen, the Forth words + - x / DUP and SWAP are implemented with blocks.
+Read at https://help.sugarlabs.org/turtleart_tutorials/stack_programming.html
-On the left, a Forth like program to compute 3^2 +4^2 = 25
+The source file has been moved to [https://github.com/godiard/help-activity/blob/master/source/turtleart_tutorials/stack_programming.rst GitHub]
-[[File:Screenshot of Turtle Art Activity forth.png|600px]]
-[[File:Turtle Art Activity forth.ta]]
-What computations can you make with this set of words?
-Make additional words with Turtle blocks
-The - and / words process the operands on the stack in the reverse order to Forth, you can fix the word definitions on the right with SWAP