Update pbrMathLogarithmTesting.sol

Contracts/pbrMathLogarithmTesting.sol

@@ -8,32 +8,33 @@ import { UD60x18, ud } from "@prb/math/src/UD60x18.sol";
 
 contract pbrMathLogarithmTesting {
 
+  // For log2 and log10:
+  // Min input value for ud(x) is = 1 ether = 1000000000000000000
+  // ud(1 ether) = x.log2() = x.log10() = 0
+  // Reverts with 999999999999999999
+
   /// @notice Calculates the binary logarithm of the given signed number.
-  /// @dev Try this with x = 128e18.
   function unsignedLog2WithTenEther() external pure returns (UD60x18 result) {
     UD60x18 x = ud(10 ether);
     // Returns 3.321928094887362334 ether, since: 
-    // 10 ether = 2**(3.321928094887362334 ether)
+    // 10 = (3.321928094887362334)**2
     result = x.log2(); 
   }
 
   /// @notice Calculates the binary logarithm of the given signed number.
-  /// @dev Try this with x = 128e18.
   function unsignedLog10WithTenEther() external pure returns (UD60x18 result) {
     UD60x18 x = ud(10 ether);
     // Returns 1 ether, since: 
-    // 10 ether = 10**(1 ether).
+    // 10 = 1**(10).
     result = x.log10(); 
   }
 
   /// @notice Calculates the binary logarithm of the given signed number.
-  /// @dev Try this with x = 128e18.
   function unsignedLog2(UD60x18 x) external pure returns (UD60x18 result) {
     result = x.log2();
   }
 
   /// @notice Calculates the binary logarithm of the given signed number.
-  /// @dev Try this with x = 128e18.
   function unsignedLog10(UD60x18 x) external pure returns (UD60x18 result) {
     result = x.log10();
   }