excel - use a created function within a function vba -
im making vba function calculate integral using trapezoidal rule how can apply function created in vba use in function...heres code ( worksheet.function did not work)
option explicit function funcion(x double) double funcion = 3 * (x ^ 3) + 5 * (x ^ 2) - 10 * x + 20 end function function sumatoria(a double, n double, h double) double dim integer dim sum double = 0 sum = 0 while (i <= n - 1) sum = sum + worksheetfunction.funcion(a + * h) = + 1 loop sumatoria = sum end function
this works :
function sumatoria(a double, n double, h double) double dim integer dim sum double dim temp double = 0 sum = 0 while (i <= n - 1) temp = + * h sum = sum + funcion(temp) = + 1 loop sumatoria = sum end function
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