The Saskatchewan death rate, long in the 7.5â8.5/1,000 range, increased to 9.2 in 2001, perhaps to some extent due to the âbaby boomâ generation of the 1950s now reaching retirement age, but mostly due to a significant expansion of older-aged population.
Differentiation is an operation that allows us to find a function that outputs the rate of change of one variable with respect to another variable. Informally, we may suppose that we're tracking the position of a car on a two-lane road with no passing lanes.
This tells where the car is at each specific time. Differentiation gives us a function d x d t {\displaystyle {\frac {dx}{dt}}} which represents the car's speed, that is the rate of change of its position with respect to time. Equivalently, differentiation gives us the slope at any point of the graph of a non-linear function.