toDouble() bug

.gitignore

@@ -2,4 +2,7 @@ packages
 .packages
 pubspec.lock
 .pub/
-.dart_tool
+.dart_tool
+
+.idea/**
+*.iml

lib/src/big_decimal.dart

@@ -1,4 +1,5 @@
 // ignore_for_file: constant_identifier_names
+import 'dart:math' as math;
 
 enum RoundingMode {
   UP,
@@ -163,7 +164,7 @@ class BigDecimal implements Comparable<BigDecimal> {
   }
 
   double toDouble() =>
-      intVal.toDouble() / BigInt.from(10).pow(scale).toDouble();
+      intVal.toDouble() / math.pow(10.0, scale);
   BigInt toBigInt({RoundingMode roundingMode = RoundingMode.UNNECESSARY}) =>
       withScale(0, roundingMode: roundingMode).intVal;
   int toInt({RoundingMode roundingMode = RoundingMode.UNNECESSARY}) =>

test/big_decimal_test.dart

@@ -389,6 +389,7 @@ void main() {
       tabCase([BigInt.from(9223372036854775807).dec, 9223372036854776000.0]),
       tabCase([BigInt.from(-9223372036854775808).dec, -9223372036854775808.0]),
       tabCase([BigInt.from(-9223372036854775808).dec, -9223372036854776000.0]),
+      tabCase(['1.0e2'.dec, 100.0]),
     ]),
   );