Oh, this.  10,000 times this.<p>Instead of memorizing multiplication tables, you instead have to memorize derivative formulas, or the formulas for the Fourier and Laplace transforms, or the difference between a bijection and an injection, or all the conditions on an elliptic curve that make it suitable for cryptography.  I could go on and on and on.<p>The stupid notations that mathematicians use doesn&#x27;t help either.  All math should be done using S expressions (and I&#x27;m pretty sure Minsky would have agreed!)<p>R.I.P. Marvin.