In the world of mid-century mathematics, textbooks were often as rigid and unyielding as the theorems they contained. However, Ralph Palmer Agnew’s Differential Equations
: Agnew often used witty remarks to soften the blow of difficult topics. For example, he famously joked that converting Laplace equations from rectangular to spherical coordinates is so tedious it could make you forget a toothache. differential equations ralph palmer agnew pdf
: Discussion of the Runge-Kutta and Milne methods. In the world of mid-century mathematics, textbooks were