1.217 FAQ-960 How to calculate the area under the curve in a 2D ternary graph?

Last Update: 9/29/2023

Area Under Curve in Ternary.png

To calculate the area under the curve in 2D ternary(the shadow area in the graph above),

  1. Go to the source data with the X, Y, and Z columns and highlight the X and Y columns, select Analysis: Mathematics: Integrate menu to open the Integrate tool.
  2. Change the Area Type to Absolute Area and click OK button to do the integration. You can get the Area value of the integration in the Result Log window and the Comment cell of the column "Integrated Y1".
  3. Multiply the Area value by sqrt(3)/2. The result will be the area under the curve in 2D ternary.

Keywords:area, integrate, integrated value, ternary coordinate
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