How Do You Use The Trapezoidal Rule In Microsoft Excel?
The trapezoidal rule is used to approximate the integral of a function. The rule involves treating the area under a curve as a series of trapezoidal slices. Implementing this rule in Excel requires inputting a curve’s independent and dependent values, setting integration limits, setting slice parameters and using a function to determine area. Input the curve you wish to analyze in an Excel spreadsheet. Put the independent values (i.e., x values) in the first column. Put the dependent values (i.e., f[x] values) in the second column. Determine the desired limits of integration. For example, if you want to find the area under a curve between x = 0 and x = 5, your limits of integration are 0 and 5. Delete any values outside the limits of integration in the first two columns of your table. Determine the desired number of trapezoidal slices. Divide this value by the range of your integration limits to get slice length. For example, if you want five slices between x = 0 and x = 5, your slice
