New answers tagged arithmetic
0
votes
Addition/Multiplication table generator
Vyxal, 18 bytes
ɾ?\vdpĖ:vvS$fGL↲Ṡ⁋
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Without strict IO formats, the whole :vvS$fGL↲Ṡ⁋ could be omitted
- 9,066
1
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1, 2, Fizz, 4, Buzz
D, 90 bytes
import std;void main(){foreach(i;1..101)max("FizzBuzz"[i%3?4:0..i%5?4:8],i.text).writeln;}
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- 111
1
vote
The vanilla factorial challenge
Regex 🐇 (RME / PCRE2 v10.35+), 12 bytes
^((?*x+)x)*$
Attempt This Online! - PCRE2
Try it on replit.com! - RegexMathEngine, in ...
- 9,610
1
vote
The vanilla factorial challenge
Carbon, 53 bytes
fn f(x:i32)->i32{return if(x==0)then 1else x*f(x-1);}
Try it Online!
Here is a full program for testing at the above site:
...
- 3,347
1
vote
The vanilla factorial challenge
StackCell, 14 bytes
Uses this input format and this output format
The below code uses the Unicode control character glyphs [U+24XX] to represent ASCII unprintable control characters embedded in the ...
- 55
1
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1
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1
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How many steps does it take from n to 1 by subtracting the greatest divisor?
dc, 39 bytes
0[1+rd[d3R1-d_4R%0<t]dstxr-d_3R1<l]dslx
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Takes input as number on top of stack, and leaves result as top of stack
- 475
1
vote
Cartesian - polar conversion couple
R, 30+24=54 bytes
Cartesian to polar, 30 bytes
\(x,y)c(Mod(z<-x+1i*y),Arg(z))
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No imaginary numbers for +2:
...
- 12.1k
2
votes
Cartesian - polar conversion couple
x86 64-bit machine code, 23 + 13 = 36 bytes
D9 06 D9 07 D9 F3 D9 07 D8 C8 D9 06 D8 C8 DE C1 D9 FA D9 1E D9 1F C3
D9 07 D9 FB D8 0E D9 1F D8 0E D9 1E C3
Try it ...
- 7,326
2
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Cartesian - polar conversion couple
05AB1E (legacy), 7 + 22 = 29 bytes
Polar to Cartesian (7 bytes):
.¾¹.½‚*
Loose inputs in the order \$\phi,r\$; outputs as a pair \$[x,y]\$.
Try it online or verify ...
- 107k
0
votes
Iterated partial sums
PARI/GP, 31 bytes
f(a,n)=Vec(Ser(a)/(1-x)^n+.5)\1
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Converts the list to a power series, divides it by \$(1-x)^n\$, and then converts it back to ...
- 36.1k
1
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3
votes
Cartesian - polar conversion couple
Factor, 16 + 15 = 31 bytes
[ rect> >polar ]
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[ cis * >rect ]
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...
- 10.9k
1
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Cartesian - polar conversion couple
PARI/GP, 34 + 24 = 58 bytes
f(x,y)=[abs(z=x+I*y),if(z,arg(z))]
g(r,a)=r*[cos(a),sin(a)]
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- 36.1k
8
votes
Cartesian - polar conversion couple
Python, 49 + 48 = 97 bytes
-2 thanks to @Seb
lambda r,a,n=9e9:((x:=r*(a/n-1j)**n).real,x.imag)
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lambda x,y,n=1e-9:(abs(c:=x+1j*y),(c**n).imag/n)
Doesn't use any libraries, no exp, ...
- 8,180
1
vote
Cartesian - polar conversion couple
SageMath, 69 68 bytes
lambda x,y:((x^2+y^2)^.5,arctan2(y,x))
lambda r,t:(r*cos(t),r*sin(t))
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Adjusted score correctly thanks to Steffan.
Saved a ...
- 18.6k
2
votes
Cartesian - polar conversion couple
MATLAB/Octave, 9+9=18 bytes, builtins
Simple builtins, convert between (x,y) and (angle[radians],radius)
Cartesian to polar:
@cart2pol
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Polar to ...
- 858
3
votes
Cartesian - polar conversion couple
J 10 (5 + 5)
to polar, 5 bytes
*.@j.
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to cartesian, 5 bytes
+.@r.
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Both of these amount to one ...
- 28.6k
1
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Cartesian - polar conversion couple
lin, 28 + 17 = 45 bytes
To Polar ([a b] -> [a b]):
"2^.$_ +.5^"".$_.~ atant", Q
To Cartesian (...
- 8,870
5
votes
Cartesian - polar conversion couple
Wolfram Language (Mathematica), 14+11=25 bytes
AbsArg[#+I#2]&
AngleVector
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Input [x,y]/...
- 16.3k
2
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Cartesian - polar conversion couple
Python, 48+48 = 96 bytes
lambda*t:(hypot(*t),atan2(*t))
from math import*
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-4 bytes thanks to xnor.
lambda a,b:(a*cos(b),a*sin(b))
from math import*
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- 9,066
1
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Cartesian - polar conversion couple
C (gcc), 88 bytes
C(x,b,t)float*x,t;{t=x[1];x[1]=b?*x*sin(t):atan(t/(*x));*x=b?*x*cos(t):sqrt(*x**x+t*t);}
86 bytes
2 bytes can be saved by inverting the order of ...
- 2,830
2
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Cartesian - polar conversion couple
APL (Dyalog Classic), 22 + 15 = 37 bytes
Cartesian to Polar: 22 bytes
{(.5*⍨+/⍵⍺*2),¯3○⍵÷⍺}
Polar to Cartesian: 15 bytes
...
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3
votes
Cartesian - polar conversion couple
Jelly, 7 + 6 bytes = 13
Polar to Cartesian:
×ıÆe×Æi
A dyadic Link accepting \$\theta\$ on the left and \$r\$ on the right that yields a list \$[x, y]\$.
Try it ...
- 92.9k
1
vote
Cartesian - polar conversion couple
Vyxal, 10 + 7 = 17 bytes
Cartesian to Polar, 10 bytes
²∑√?Ṙƒ/∆T"
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Polar to Cartesian, 7 bytes
⁰₍∆c∆s*
Try ...
- 9,066
4
votes
Cartesian - polar conversion couple
Pip -p, 10 + 12 = 22 bytes
Polar to Cartesian:
a*[CObSIb]
Takes angle in radians. Outputs a list containing x and y. Try it ...
- 33.3k
4
votes
Cartesian - polar conversion couple
Mathematica, 18+20 = 38 bytes
ToPolarCoordinates
FromPolarCoordinates
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For the ...
- 9,066
4
votes
Cartesian - polar conversion couple
Desmos, 33+19 = 52 score
Both functions take in two arguments representing either polar or Cartesian coordinates (depending on which function is being used), and returns a list representing the ...
- 5,790
0
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The plus-minus sequence
C (gcc), 62 bytes
int f(int a,int b){for(;1;b=(a+=b)-2*b)printf("%d %d\n",a,b);}
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Theoretically outputs indefinitely, however, it only ...
- 475
1
vote
Cryptic Multiplications
Charcoal, 36 bytes
ＦＸχＬθＦＥＸχＬη⪫⟦ικ×ικ⟧¶⊞υＥκ⌕κλＩ№υ§υＩ⁺θη
Try it online! Link is to verbose version of code. Explanation:
ＦＸχＬθ
...
- 146k
3
votes
Cryptic Multiplications
05AB1E, 20 bytes
€g°Ý`âIšεDPª»DSk»}ć¢
Port of @Steffan's Vyxal answer, but with less convenient builtins.
Try it online or verify (almost) all test cases (the last ...
- 107k
1
vote
Cryptic Multiplications
Ruby, 108 bytes
->a,b{[*0..9].permutation.map{|c|"#{a}*#{b}==#{a*b}".tr('0-9',c*'')}.uniq.count{|c|/^0|\*0|=0/!~c&&eval(c)}}
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- 18.3k
4
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4
votes
Cryptic Multiplications
Vyxal s, 17 bytes
vL↵ʀΠƛ?"ƛΠJṄ:vḟ;≈
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This would flaglessly be 19 bytes. It can be shorter flagless, though:
...
- 9,066
3
votes
Cryptic Multiplications
Jelly, 20 18 17 bytes
Thanks to Steffan for a speed up! (‘×⁵ -> æċ⁵) and a byte that ended up saving elsewhere!
Save of 2 ...
- 92.9k
7
votes
Cryptic Multiplications
K (ngn/k), 41 36 bytes
-5 bytes inspired by Jonathan Allan's answer.
{#*={.(=`k@x,*/x)_" "}'?+x,'!10*1+x}
Try it online! The last 4 cases are too slow to ...
- 55k
3
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1
vote
Additive Persistence
Ly, 21 bytes
0s+1[pSy,![lu;]&+l`s]
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A pretty straight forward interpretation of the challenge rules this time.
...
- 2,009
1
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Summation from a to b
Factor + math.unicode, 12 bytes
[ [a,b] Σ ]
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Interesting tidbit: sum (and ...
- 10.9k
1
vote
Additive Persistence
Knight, 54 bytes
;=iP;=r 0;W<1Li;=s 0;Wi;=s+sA Ai=iGi 1Li;=i+""s=r+1rOr
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- 9,066
1
vote
Strange Addition
Knight, 45 bytes
;=aP;=bP Wa;O+A I>a bAaAb"\";=aGa 1La=bGb 1Lb
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Takes two zero-padded numbers (it works with spaces as well).
- 9,066
1
vote
Summation from a to b
Knight, 19 bytes
O/*+E=aP=bP+1-b a 2
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Uses the formula (a+b)*(b-a+1)/2.
- 9,066
0
votes
2
votes
The vanilla factorial challenge
Brachylog, 1 byte
ḟ
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Also works with a fixed output and an unknown input, with decent performance.
No built-in, 3 bytes
...
- 36.6k
2
votes
The vanilla factorial challenge
JavaScript, 19 bytes
f=n=>n?f(n-1n)*n:1n
2 bytes longer than the other JS answers, but can safely calculate as high as 11190! instead of 18!, with anything ...
- 331
3
votes
The vanilla factorial challenge
Knight, 25 bytes
;=x+=y 1P;W=x-x 1=y*x yOy
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Ungolfed:
...
- 64.8k
1
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1
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Add two numbers
Quipu, 11 bytes
\/
\/
++
/\
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Explanation
Each side-by-side pair of characters is a command ("knot"), and execution proceeds from top ...
- 33.3k
2
votes
Add two numbers
Trianguish, 15 bytes
00000000: 1020 c301 a050 c008 b105 0c01 0710 19
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- 9,066
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