Someone please help me with this matlab function please!

Column arrays measured Temperature 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). Use the diff function and the element-by-element division operator. Ex: If measuredTemperature = [91; 92; 94; 97] and sampleTime = [0; 1; 2; 3], then forwardDiff = [1; 2; 3]