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Type a GP expression in the third (blue) box then hit <Shift>-<Enter> or click on the Evaluate button below it. A trailing semi-colon ; prevents output. You can assign to variables and define user functions. (Speed is approximately one fourth of native speed.)


  • ?eulerphi (short help), ??factor (long help in new tab),
  • 2*3, 10!, (1+x)^10, exp(Pi*sqrt(163)),
  • factor(2^128+1), factor(x^6+I),
  • intnum(x=-oo,oo,1/(1+x^2)), sumpos(n=1, n^(-3)),
  • sin(x), ellj(x + O(x^20)),
  • \p100: change default accuracy to 100 decimal digits
  • K=bnfinit(x^2+23); (huge: don't forget the ;), K.clgp
  • E=ellinit([0,1]*Mod(1,10^50+151)); ellcard(E),
  • polgalois(x^8-2), ellsearch(11) (loads packages on demand),
  • lfun(x^3-2, 2) (Dedekind zeta function from new Lfun package)
  • ecm(N, B = 1000!, nb = 100)=
      for(a = 1, nb,
        iferr(ellmul(ellinit([a,1], N), [0,1], B),
          E, return(gcd(lift(component(E,2)),N))))

PARI is compiled using emscripten. Enter \v for version information.

PARI/GP Development
Last Modified: 2017-03-21 18:26:01
Copyleft © 2003-2016 the PARI group.