diff --git a/src/CalcManager/CEngine/scidisp.cpp b/src/CalcManager/CEngine/scidisp.cpp
index d43ef3da..b1f26e3c 100644
--- a/src/CalcManager/CEngine/scidisp.cpp
+++ b/src/CalcManager/CEngine/scidisp.cpp
@@ -61,7 +61,7 @@ CalcEngine::Rational CCalcEngine::TruncateNumForIntMath(CalcEngine::Rational con
 
     // Can be converting a dec negative number to Hex/Oct/Bin rep. Use 2's complement form
     // Check the range.
-    if (result.IsLess(Rational{}, m_precision))
+    if (result.IsLess(0, m_precision))
     {
         // if negative make positive by doing a twos complement
         result = result.Negate();
@@ -146,7 +146,7 @@ int CCalcEngine::IsNumberInvalid(const wstring& numberString, int iMaxExp, int i
         // in case there's an exponent:
         //      its optionally followed by a + or -
         //      which is followed by zero or more digits
-        wregex rx(wstring{ c_decPreSepStr } +m_decimalSeparator + wstring{ c_decPostSepStr });
+        wregex rx(wstring{ c_decPreSepStr } + m_decimalSeparator + wstring{ c_decPostSepStr });
         wsmatch matches;
         if (regex_match(numberString, matches, rx))
         {
diff --git a/src/CalcManager/CEngine/scifunc.cpp b/src/CalcManager/CEngine/scifunc.cpp
index 0583540a..26daf238 100644
--- a/src/CalcManager/CEngine/scifunc.cpp
+++ b/src/CalcManager/CEngine/scifunc.cpp
@@ -37,7 +37,7 @@ CalcEngine::Rational CCalcEngine::SciCalcFunctions(CalcEngine::Rational const& r
 
             /* Return complement. */
         case IDC_COM:
-            result = rat.Not(true, m_chopNumbers[m_numwidth], m_radix, m_precision);
+            result = rat.Not(m_fIntegerMode, m_chopNumbers[m_numwidth], m_radix, m_precision);
             break;
 
             // Rotate Left with hi bit wrapped over to lo bit
@@ -136,7 +136,7 @@ CalcEngine::Rational CCalcEngine::SciCalcFunctions(CalcEngine::Rational const& r
             result = Pow(rat, 2, m_radix, m_precision);
             break;
 
-        case IDC_SQRT: /* Sqrt only in Std mode */
+        case IDC_SQRT: /* Square Root */
             result = Root(rat, 2, m_radix, m_precision);
             break;