please help, I will sure rate :) !

This activity uses a 3rd party app. Though your activity may be recorded, a refresh may be required to update the banner to the left. Column arrays measuredTemperature and sampleTime contain engine temperature measurement samples, and the time each sample was collected, respectively. Assign forwardDiff with the forward difference. The forward difference approximation f (x_i) is (f(x_i+1) - f(x_i))/(x_i+1 - x_i). Ex: If measuredTemperature = [91; 92; 94; 97] and sampleTime = [0; 1; 2; 3], then forwardDiff = [1; 2; 3] function forwardDiff = DerivativeApprox(measuredTemperature, sampleTime) % measuredTemperature: Engine temperature measurements in Celsius % sampleTime: Time the sample was collected in seconds % Assign forwardDiff with the forward difference approximation given by % (measuredTemperature(n+1) - measuredTemperature(n))/(sampleTime(n+1) - sampleTime(n)) forwardDiff = measuredTemperature; end