What is the best method for interpolating between two numbers?

The best method for interpolating between two numbers is to sum the two numbers and divide by 2. This approach calculates the average of the two numbers, which effectively provides a midpoint value. Interpolation typically aims to estimate values within a known range, and finding the average serves this purpose by representing a balanced point between both numbers.

When you sum the two numbers and divide by 2, you obtain a result that lies exactly halfway between them, making it ideal for straightforward linear interpolation. This method is commonly used in various applications, such as estimating values in mathematics and physics, where knowing the midpoint is often necessary for comparisons or further calculations.

In contrast, adding the two numbers and dividing by 3 would not yield the correct midpoint and is not a standard method for interpolation. Multiplying the numbers together serves a completely different purpose, yielding a product rather than an interpolated value. Finally, subtracting the smaller number from the larger simply gives the range between the two values rather than a new interpolated value.