# TEX/Favorites

 \textstyle \frac{x}{y} \\\frac{x}{y} \textstyle \sum_x^n \\\sum_{x=1}^{n} \textstyle \prod_x^n \\\prod^{x=1}_{n} \textstyle \int_a^b \\\int_{a}^{b} f (x)\\\,dx \textstyle \frac{\partial x}{\partial y} \\\frac{\\\partial x}{\\\partial y} \textstyle \sqrt x \\\sqrt{x} \textstyle \sqrt[3]{x} \\\sqrt[3]{x} \textstyle f(x) f(x) \lim \\\lim_{x\\\to\\\infty} *** \sin \\\sin (x) \cos \\\cos (x) \tan \\\tan (x) \log \\\log (x) \ln \\\ln (x) *** \le \\\le \ge \\\ge \neq \\\neq \approx \\\approx \equiv \\\equiv \propto \\\propto \infty \\\infty *** \alpha \\\alpha \beta \\\beta \gamma \\\gamma \delta \\\delta \epsilon \\\epsilon \zeta \\\zeta \eta \\\eta \theta \\\theta \vartheta \\\vartheta \kappa \\\kappa \lambda \\\lambda \mu \\\mu \xi \\\xi \pi \\\pi \rho \\\rho \sigma \\\sigma \tau \\\tau \phi \\\phi \varphi \\\varphi \chi \\\chi \psi \\\psi \omega \\\omega *** \Rightarrow \\\Rightarrow \rightarrow \\\rightarrow \Leftarrow \\\Leftarrow \leftarrow \\\leftarrow \Leftrightarrow \\\Leftrightarrow \vec{x} \\\vec{x} *** (x) \\\left(x\\\right) [x] \\\left[x\\\right] \{x\} \\\left\\\{x\\\right\\\} \textstyle {n \choose k} {n \\\choose k} *** \Box \\\Box \forall \\\forall \exists \\\exists \in \\\in \not\in \\\not\\\in *** \mbox{Taylor} f(x) = \\\sum_{k=0}^{\\\infty } \\\frac{ f^{k} (a) }{ k! } (x - a)^k \mbox{Euler}^1 e^{i \\\varphi } := \\\cos \\\varphi + i \\\sin \\\varphi