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public:calculator:guides:dm15l_curve_fit [01/02/26 22:25 GMT] – [Method for Exponential y=b.e<sup>ax</sup>] johnpublic:calculator:guides:dm15l_curve_fit [06/04/26 13:40 BST] (current) – [Example Data] john
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-====== DM15L : Non-linear Curve Fit ======+====== DM15L Non-linear Curve Fit ======
  
 ** Using DM15L/HP15C built-in L.R function to fit non-linear curves ** ** Using DM15L/HP15C built-in L.R function to fit non-linear curves **
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 ==== Method for Logarithmic ==== ==== Method for Logarithmic ====
 +**y=a.ln(x)+b**
  
 ''y = a.Ln(x) + b '' ''y = a.Ln(x) + b ''
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 ==== Method for Power ==== ==== Method for Power ====
 +**y=b.x<sup>a</sup>**
  
 '' Ln(y) = a.Ln(x) + Ln(b) '' '' Ln(y) = a.Ln(x) + Ln(b) ''
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 Linear Regression Coefficients : <key>'f'</key><key>L.R.</key>  Linear Regression Coefficients : <key>'f'</key><key>L.R.</key> 
  
-''X: 0.324'' = ''a''+''Y: 0.324'' = ''a''
  
-''Y: 1.544'' = ''b''+''X: 1.544'' = ''b''
  
 **Equation** ''y = 0.324 . Ln(x) + 1.544 '' **Equation** ''y = 0.324 . Ln(x) + 1.544 ''

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