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The Forth programming language uses a stack for computations.
 
The Forth programming language uses a stack for computations.
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On the right of the screen, the Forth words + - x / DUP and SWAP
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On the right of the screen, the Forth words + - x / DUP and SWAP are implemented with blocks.
    
On the left, a Forth like program to compute 3^2 +4^2 = 25
 
On the left, a Forth like program to compute 3^2 +4^2 = 25
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