1 files changed, 4 insertions, 3 deletions
diff --git a/chart2/source/inc/ExponentialRegressionCurveCalculator.hxx b/chart2/source/inc/ExponentialRegressionCurveCalculator.hxx
index 91c3034ea79c..acecde281001 100644
--- a/chart2/source/inc/ExponentialRegressionCurveCalculator.hxx
+++ b/chart2/source/inc/ExponentialRegressionCurveCalculator.hxx
@@ -63,9 +63,10 @@ private:
         throw (::com::sun::star::lang::IllegalArgumentException,
                ::com::sun::star::uno::RuntimeException);
 
-    // formula is: f(x) = m_fSlope ^ x + m_fIntercept
-    double m_fSlope;
-    double m_fIntercept;
+    // formula is: f(x) = exp(m_fLogIntercept) * exp( m_fLogSlope * x )
+    // mathematical model f(x) = Intercept * Slope^x
+    double m_fLogSlope;
+    double m_fLogIntercept;
 };
 
 } //  namespace chart