feat: update mod inv

2025-07-18 00:15:18 +08:00
parent 6944d618d6
commit ba191de185
1 changed files with 1 additions and 0 deletions
--- a/src/main/java/me/hatter/math/ModularInv.java
+++ b/src/main/java/me/hatter/math/ModularInv.java
@@ -17,6 +17,7 @@ public class ModularInv {
                // a^-1 mod p
                BigInteger x = a.modInverse(p);
                BigInteger y = modularInv(a, p);
+                // a^(phi(p)-1) mod p
                BigInteger z = a.modPow(Phi.phi(p).subtract(BigInteger.ONE), p);
                System.out.println(Arrays.asList(a + "^-1 mod " + p, x, y, z));
                if (!y.equals(x) || !y.equals(z)) {