7 lines
		
	
	
		
			190 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			7 lines
		
	
	
		
			190 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
%%% Geometry module.
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-module(geometry).
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-export([area/1]).
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%% Compute rectangle and circle area.
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area({rectangle, Width, Ht}) -> Width * Ht;
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area({circle, R})            -> 3.14159 * R * R. |