Perform linear interpolation to find intermediate values between two known points. Essential for reading engineering tables and sensor data calibration.
It is a method of estimating a value within two known values in a sequence of values, assuming a straight line between points.
It is an approximation. If the data follows a curve, linear interpolation introduces a small error, but is often 'close enough' for small intervals.
y = y1 + (x-x1)...