We also provide a downloadable excel template. Here we discuss how to calculate the Interpolation Formula along with practical examples. This is a guide to Interpolation Formula. Please keep in mind that interpolation is a statistical and mathematical tool that is used to predict the intermediate values between two points. One of the basic variants of interpolation is the linear interpolation technique which is commonly used by analysts in the field of mathematics, finance and computer programming. The importance of the interpolation technique can be gauzed from the fact that linear interpolation is believed to be used by Babylonian mathematicians and astronomers in the last three centuries BC, while the Greeks and Hipparchus used it in the 2nd century BC. Y = (y 2 – y 1) / (x 2 – x 1) * (x – x 1) + y 1 Relevance and Use of Interpolation Formula Step 4: Finally, the function for interpolation can be derived by multiplying the slope (step 3) with the difference between the independent variable and the abscissa of any one data point and then adding the corresponding ordinate to the result as shown below. Step 3: Next, calculate the slope of the available data points by dividing the difference between the ordinates by that of the abscissas of the available data points. Click the Calculate button, and the blank value will be filled in by linear interpolation. Make sure that there are at least two data points as it is the minimum data points required. Linear interpolation calculator Linear interpolator Fill in five values and leave one blank. Step 2: Next, gather as many as possible historical and current data points in order to build a function. Step 1: Firstly, identify the independent and dependent variables for the function. The following information has been collected: As such, his doctor decided to monitor his weight and so started tracking his weight every 6 days for the last 60 days. Let us take the curious case of John Doe who has been gaining significant weight in the last couple of months. Therefore, the temperature of the rod was 78.33֯C at 9.40 A.M. Temperature of the Rod(y) is calculated using the formula given below. Find the temperature of the Rod at 9.40 A.M based on the given information. Thermodynamic Properties - Main 1 Pressure (absolute) p bar Specific gas constant: R 0.461526 kJ/ (kgK) 2 Temperature t C Molar gas constant: Rm 8.31451 J/ (molK) 3 Density d kg/m Molar mass: M 18.015257 g/mol 4 Specific volume v m/kg Critical temperature: Tc 647.096 K, ( 373. Suppose that the Temperature of the Rod was 100☌ at 9.30 A.M which gradually came down to 35☌ at 10.00 A.M. Let us take the example of a hot Rod to illustrate the concept of interpolation. You can download this Interpolation Formula Excel Template here – Interpolation Formula Excel Template Interpolation Formula – Example #1
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