Prime reciprocal sum: Difference between revisions

Added Sidef
m (Added reference to "bignum".)
(Added Sidef)
 
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Line 719:
15: 11390125639471674628..31060548964273180103 (2358 digits)
16: 36961763505630520555..02467094377885929191 (4711 digits)</pre>
 
=={{header|RPL}}==
Limited floating-point precision prevents from finding the correct 7th term. Program starts with a non-empty sequence to avoid the <code>∑LIST</code> calculation bug that occurs when the input list has less than two items.
{{works with|HP|49g}}
≪ {2 3}
1 4 '''START''' 1 OVER INV ∑LIST - INV →NUM IP NEXTPRIME + '''NEXT'''
≫ '<span style="color:blue">∑INVPR</span>' STO
{{out}}
<pre>
1: {2 3 7 43 1811 654149}
</pre>
 
=={{header|Sidef}}==
<syntaxhighlight lang="ruby">var A075442 = Enumerator({|callback|
var sum = 0
loop {
var p = next_prime(ceil(1/(1-sum)))
sum += 1/p
callback(p)
}
})
 
A075442.first(15).each_kv {|k,n|
var s = Str(n)
s = "#{s.first(20)}..#{s.last(20)} (#{s.len} digits)" if (s.len > 50)
say "#{'%2d' % k+1}: #{s}"
}</syntaxhighlight>
{{out}}
<pre>
1: 2
2: 3
3: 7
4: 43
5: 1811
6: 654149
7: 27082315109
8: 153694141992520880899
9: 337110658273917297268061074384231117039
10: 84241975970641143191..13803869133407474043 (76 digits)
11: 20300753813848234767..91313959045797597991 (150 digits)
12: 20323705381471272842..21649394434192763213 (297 digits)
13: 12748246592672078196..20708715953110886963 (592 digits)
14: 46749025165138838243..65355869250350888941 (1180 digits)
15: 11390125639471674628..31060548964273180103 (2358 digits)
</pre>
 
=={{header|Wren}}==
Line 724 ⟶ 769:
{{libheader|Wren-fmt}}
Even with GMP takes about 4½ minutes to find the first 16.
<syntaxhighlight lang="ecmascriptwren">import "./gmp" for Mpz, Mpq
import "./fmt" for Fmt
 
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