kdt310722
diff --git a/‎src/number/bigint.ts
+7 b/‎src/number/bigint.ts
+7
diff --git a/‎src/number/index.ts
+2 b/‎src/number/index.ts
+2
@@ -0,0 +1,7 @@
+export const BigIntMath = {
+    abs: (a: bigint) => (a < 0n ? -a : a),
+    max: (a: bigint, b: bigint) => (a > b ? a : b),
+    min: (a: bigint, b: bigint) => (a < b ? a : b),
+    pow: (a: bigint, b: bigint) => a ** b,
+    sign: (a: bigint) => (a === 0n ? 0n : (a < 0n ? -1n : 1n)),
+}
@@ -1,3 +1,5 @@
+export * from './bigint'
 export * from './format'
 export * from './number'
+
 export type * from './types'