Calculus can be used to sum up a number of small things, so it can speed up adding any sequence.
It can find the area under curves exactly: for instance, it can be used to give you that famous equation for the volume of a sphere.
It gives you a really fast way to get the area of a polygon.
It can be used to calculate the change in something; for instance, if you just measure how fast you're going at regular times, you can calculate the distance you went.
It can also calculate instantaneous speeds. It could be used for radar guns to detect speeding cars.
In my experience it mostly reduces the number of calculations for existing math or gives you an exact answer when you had to approximate before.
Major rivers throughout the world.
world as i would like it
Worldwide Variations in Population and Income Levels Developed countries represent only 18% of the
Primary School Attendance in World Regions Attending primary school is common but not universal, wo
Is there anything in life that is permanent, or is the world constantly changing?
Climate—The “Dry World”