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			62 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| id: 5900f53a1000cf542c51004c
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| challengeType: 5
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| title: 'Problem 461: Almost Pi'
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| ---
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| 
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| ## Description
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| <section id='description'>
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| Let fn(k) = ek/n - 1, for all non-negative integers k.
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| Remarkably, f200(6) + f200(75) + f200(89) + f200(226) = 3.141592644529… ≈ π.
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| In fact, it is the best approximation of π of the form fn(a) + fn(b) + fn(c) + fn(d) for n = 200.
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| Let g(n) = a2 + b2 + c2 + d 2 for a, b, c, d that minimize the error: | fn(a) + fn(b) + fn(c) + fn(d) - π|
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| (where |x| denotes the absolute value of x).
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| You are given g(200) = 62 + 752 + 892 + 2262 = 64658.
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| Find g(10000).
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| </section>
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| 
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| ## Instructions
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| <section id='instructions'>
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| 
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| </section>
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| 
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| ## Tests
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| <section id='tests'>
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| 
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| ```yml
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| tests:
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|   - text: <code>euler461()</code> should return 159820276.
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|     testString: assert.strictEqual(euler461(), 159820276, '<code>euler461()</code> should return 159820276.');
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| 
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| ```
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| 
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| </section>
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| 
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| ## Challenge Seed
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| <section id='challengeSeed'>
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| 
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| <div id='js-seed'>
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| 
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| ```js
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| function euler461() {
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|   // Good luck!
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|   return true;
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| }
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| 
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| euler461();
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| ```
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| 
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| </div>
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| 
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| 
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| 
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| </section>
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| 
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| ## Solution
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| <section id='solution'>
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| 
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| ```js
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| // solution required
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| ```
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| </section>
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