Calculating the value of e: Difference between revisions

(→‎Imperative: add big-int variant)
Line 3,524:
e = 2.71828182828617
</pre>
=={{header|RPL}}==
{{trans|Forth}}
{{works with|Halcyon Calc|4.2.7}}
{| class="wikitable"
! Code
! Comments
|-
|
≪ "e = 2." → n result
≪ {} n 1 + + 1 CON
2 n '''START'''
0 SWAP
n 1 + 1 '''FOR''' j
DUP j GET 10 * ROT +
j 1 + MOD LAST / IP ROT ROT
j SWAP PUT
-1 '''STEP'''
result ROT →STR + 'result' STO
'''NEXT'''
DROP result
≫ ≫ ‘°e’ STO
|
''( n -- "2.718..." )''
Create a (n+1)-array filled with 1s
Loop n-1 times
Reset carry
Scan array from the right
multiply by 10, add carry
a(j) modulo j+1 , send quotient to stack
Replace a(j) with a(j) mod j+1
Add final quotient to output string
Show only result
|}
The following line of command delivers what is required:
100 °e
{{out}}
<pre>
1: "e = 2.718281828459045235360287471352662497757247093699959574966967627724076630353547594571382178525166427"
</pre>
 
=={{header|Ruby}}==
{{trans|C}}
Line 3,550 ⟶ 3,593:
0.27182818284590452353602874713526624977572470937e1
</pre>
 
=={{header|Rust}}==
<syntaxhighlight lang="rust">const EPSILON: f64 = 1e-15;
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