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casino100freespins| Related formulas for internal rate of return for multiple equations
The related Formula of Internal rate of return of cubic equation
In the field of financeCasino100freespinsInternal rate of return (Internal Rate of Return, IRR) is an important investment evaluation index. It reflects the actual income level of the investment project and can help investors to judge the profitability of the project. This paper will introduce the application of multiple equations in the calculation of IRR and related formulas.
I. definition of internal rate of return (IRR)
The internal rate of return refers to the discount rate that makes the net present value (Net Present Value, referred to as NPV) of the investment project equal to zero. In other words, IRR is the rate of return that investors expect from the project without considering the value of time. When the IRR is higher than the minimum expected return of investors, the project is usually considered feasible.
2. the relationship between multiple equation and internal rate of return.
In the actual calculation, the solution of IRR often involves multiple equations. This is because NPV is the sum of discounted future cash flows, and the discount coefficient of these cash flows is closely related to IRR. Therefore, we need to solve the IRR through multiple equations.
III. The formula for calculating the internal rate of return
Suppose an investment project has N periods, and the cash flow of each period is C1 and C2 respectively.Casino100freespins, CN, the cost of capital is r, then the formula for calculating NPV is:
NPV = C1 / (1 + r) ^ 1 + C2 / (1 + r) ^ 2 +... + CN / (1 + r) ^ N
When NPV = 0, we can get IRR. In order to solve IRR, we need to solve the following equations:
0 = C1 / (1 + IRR) ^ 1 + C2 / (1 + IRR) ^ 2 +... + CN / (1 + IRR) ^ N
4. Newton iterative method for solving IRR
Because the multiple equations are usually difficult to solve directly, we can use the Newton iterative method (Newton-Raphson Method) to solve the IRR. The basic idea of Newton iterative method is to narrow the solution range through iterative approximation until the solution that satisfies the equation is found.
Assuming that the approximate solution of IRR is R0, then the approximate solution R1 of the next iteration can be calculated by the following formula:
R1 = R0-(NPV (R0) / NPV' (R0))
Where NPV' (r) represents the derivative of NPV with respect to r. By iterating until | R1-R0 | is less than the preset threshold, we can get the approximate solution of IRR.
V. case analysis
In order to better understand the application of multiple equations in calculating IRR, let's look at a simple example. Suppose an investment project lasts for three years, with cash flows of 1 million yuan, 2 million yuan and 3 million yuan respectively, and the cost of capital is 10%. We need to solve the IRR of the project.
First of all, we can get the formula of NPV:
NPV = 100 / (1 + 0.1) ^ 1 + 200 / (1 + 0.1) ^ 2 + 300 / (1 + 0.1) ^ 3
Next, we can use Newton iterative method to solve IRR. Assuming that the initial approximate solution is 0.1, we can obtain:
NPV' (r) =-100 / (1 + r) ^ 2-200 / (1 + r) ^ 3-300 / (1 + r) ^ 4
Through iterative calculation, we can get the approximate solution of IRR is 0.22, that is, 22%. This means that investors can expect a 22% return from the project.
VI. Summary
Through the introduction of this paper, we can understand the application of multiple equations in the calculation of internal rate of return (IRR) and related formulas. As an effective solution method, Newton iterative method can help us to quickly find the IRR that meets the conditions. In practical application, investors can use this knowledge to evaluate the profitability of the project according to the specific cash flow of the project.
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