First of all, apologies for posting the same question again. I want to add the grace period to a repay table for the flat interest calculation method such that the interest amount can be received f...

I am trying to calculate an IRR with several dimensions in Matlab 2019a. My formula works in theory (ignoring the "multiple rates of return" warning for now), but the problem is that for bigger mat...

I am not able to calculate IRR. I am usign Microsoft.VisualBasic to calculate IRR. Here is a case: using Microsoft.VisualBasic; ... static void Main(string[] args) { double[] tmpCashflows = ne...

This is a simple function I use to calculate IRR. However, there are incidences when all cash flows are negative and return "Error in uniroot(npv, c(0, 1), cf = cf) : f() values at end points not o...

When I calculate the Internal Rate of Return (irr) using the numpy method irr, I receive nan as return. In [45]: numpy.irr([-10, 2, 2, 2, 2]) Out[45]: nan Shouldn't the results be at least negat...