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“Most mathematics deals with static objects such as circles and triangles and numbers. But the great universe "out there," not made by us, is in a constant state of what Newton called flux. At every microsecond it changes magically into something different. Calculus is the mathematics of change.”
― Martin Gardner, Calculus Made Easy

“Most mathematics deals with static objects such as circles and triangles and numbers.
But the great universe "out there," not made by us, is in a constant state of what
Newton called flux. At every microsecond it changes magically into something different. Calculus is the mathematics of change.”
― Martin Gardner, Calculus Made Easy