Catalan numbers: Difference between revisions
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(→version 1: added/changed comments, indentations, and whitespace, simplified some subroutines and functions.) |
m (→version 1: mention the number of methods shown in the task's preamble.) |
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=={{header|REXX}}== |
=={{header|REXX}}== |
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===version 1=== |
===version 1=== |
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All methods use independent memoization for the computation of factorials. |
All four methods use independent memoization for the computation of factorials. |
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<lang rexx>/*REXX program calculates and displays Catalan numbers using four different methods. */ |
<lang rexx>/*REXX program calculates and displays Catalan numbers using four different methods. */ |
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parse arg LO HI . /*obtain optional arguments from the CL*/ |
parse arg LO HI . /*obtain optional arguments from the CL*/ |
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