Forum Discussion
fradella100
May 06, 2021Copper Contributor
How to convert trendline with E into Excel formula?
How do I write this formula in an Excel cell? y = 4E-11x3 - 3E-07x2 + 0.001x
ScottDR2500
May 09, 2023Copper Contributor
Highlight the formula on the graph and change the Number Category in the Format Trend Line Label from General to Number and set the Decimal Places to a high number such as 15. The equation should now become clearer. For example:
y = -5E-10x5 + 3E-07x4 - 5E-05x3 + 0.0054x2 - 0.2734x + 8.1635
is
y = -0.000000000502085x5 + 0.000000268770761x4 - 0.000054782577118x3 + 0.005380616863556x2 - 0.273384591163818x + 8.163540606805940
Which if x is in Cell L2 the Excel Equation is
= -0.000000000502085*L2^5 + 0.000000268770761*L2^4 - 0.000054782577118*L2^3 + 0.005380616863556*L2^2 - 0.273384591163818*L2 + 8.16354060680594
y = -5E-10x5 + 3E-07x4 - 5E-05x3 + 0.0054x2 - 0.2734x + 8.1635
is
y = -0.000000000502085x5 + 0.000000268770761x4 - 0.000054782577118x3 + 0.005380616863556x2 - 0.273384591163818x + 8.163540606805940
Which if x is in Cell L2 the Excel Equation is
= -0.000000000502085*L2^5 + 0.000000268770761*L2^4 - 0.000054782577118*L2^3 + 0.005380616863556*L2^2 - 0.273384591163818*L2 + 8.16354060680594