Explore the groundbreaking contributions of Sir Isaac Newton and Gottfried Wilhelm Leibniz to the development of calculus. Discover their distinct approaches, the historical rivalry over priority, and how their innovations shaped modern mathematics and science. Learn how their legacies continue to influence fields like physics, engineering, and economics.

Discover the significance of the Euler number 'e' (approximately 2.71828), a cornerstone of mathematics that embodies exponential growth and decay. Explore its pivotal role in calculus, finance, and various scientific disciplines, including its unique properties and connections through Euler's identity. Uncover why 'e' is essential for understanding continuous processes and mathematical analysis.