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数学期刊 今日: 0|主题: 2081|排名: 5 

版主: 周华
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预览 有比夸克更小的粒子吗? attach_img luyuanhong 2023-5-22 08:09 02634 luyuanhong 2023-5-22 08:09
预览 来自宇宙深层的呐喊:数学为何能解释自然丨展卷 attach_img luyuanhong 2023-5-22 00:31 02508 luyuanhong 2023-5-22 00:31
预览 用函数来思考(上) attach_img luyuanhong 2023-5-20 00:55 02955 luyuanhong 2023-5-20 00:55
预览 用函数来思考(下) attach_img agree luyuanhong 2023-5-18 20:43 02644 luyuanhong 2023-5-18 20:43
预览 林开亮:从线性代数的观点看常微分方程 attach_img luyuanhong 2023-5-17 20:18 02622 luyuanhong 2023-5-17 20:18
预览 从大自然的分形之美中寻找非凡物态 attach_img luyuanhong 2023-5-16 19:13 02397 luyuanhong 2023-5-16 19:13
预览 物理学的精妙思想,可能就在一幅简单的图中 attach_img luyuanhong 2023-5-15 23:53 02565 luyuanhong 2023-5-15 23:53
预览 数学基本功、数学素养与数学眼界 luyuanhong 2023-5-15 08:22 02719 luyuanhong 2023-5-15 08:22
预览 混沌科学幕后的两位女性,她们的贡献不应被遗忘|女性数学日 attach_img luyuanhong 2023-5-13 23:30 02545 luyuanhong 2023-5-13 23:30
预览 窦华书: Navier-Stokes 方程可以描述湍流吗? attach_img luyuanhong 2023-5-13 18:33 02962 luyuanhong 2023-5-13 18:33
预览 推理与证明之不同 luyuanhong 2023-5-13 18:01 02660 luyuanhong 2023-5-13 18:01
预览 科学世界|虚数:另一个维度的数 attach_img luyuanhong 2023-5-12 08:53 23267 Ysu2008 2023-5-12 16:15
预览 时间为何不同于其他维度? attach_img luyuanhong 2023-5-11 00:50 12858 luyuanhong 2023-5-11 01:13
预览 您了解数论吗?这 10 个典型数论问题您能解答几个? attach_img  ...2 luyuanhong 2023-5-7 00:07 196819 ysr 2023-5-9 16:24
预览 托勒密-欧拉定理的矢量代数证明 attach_img luyuanhong 2023-5-9 13:41 03038 luyuanhong 2023-5-9 13:41
预览 新书|《“无”的故事:万物何处来》 attach_img luyuanhong 2023-5-8 08:43 02776 luyuanhong 2023-5-8 08:43
预览 数学证明错误类型 attach_img luyuanhong 2023-5-5 19:53 23453 luyuanhong 2023-5-5 20:25
预览 气象学家与数学家的混沌接力 attach_img luyuanhong 2023-5-4 19:04 02719 luyuanhong 2023-5-4 19:04
预览 林开亮:从标准定理与常规练习提问 attach_img luyuanhong 2023-5-3 22:14 12798 mathmatical 2023-5-3 22:46
预览 法国数学何以如此出色?法兰西英才教育考察报告 attach_img luyuanhong 2023-5-3 18:58 12774 luyuanhong 2023-5-3 18:58
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\frac{\square}{\square}\sqrt{\square}\square_{\baguet}^{\baguet}\overarc{\square}\ \dot{\baguet}\left(\square\right)\binom{\square}{\square}\begin{cases}\square\\\square\end{cases}\ \begin{bmatrix}\square&\square\\\square&\square\end{bmatrix}\to\Rightarrow\mapsto\alpha\ \theta\ \pi\times\div\pm\because\angle\ \infty
\frac{\square}{\square}\sqrt{\square}\sqrt[\baguet]{\square}\square_{\baguet}\square^{\baguet}\square_{\baguet}^{\baguet}\sum_{\baguet}^{\baguet}\prod_{\baguet}^{\baguet}\coprod_{\baguet}^{\baguet}\int_{\baguet}^{\baguet}\lim_{\baguet}\lim_{\baguet}^{\baguet}\bigcup_{\baguet}^{\baguet}\bigcap_{\baguet}^{\baguet}\bigwedge_{\baguet}^{\baguet}\bigvee_{\baguet}^{\baguet}
\underline{\square}\overline{\square}\overrightarrow{\square}\overleftarrow{\square}\overleftrightarrow{\square}\underrightarrow{\square}\underleftarrow{\square}\underleftrightarrow{\square}\dot{\baguet}\hat{\baguet}\vec{\baguet}\tilde{\baguet}
\left(\square\right)\left[\square\right]\left\{\square\right\}\left|\square\right|\left\langle\square\right\rangle\left\lVert\square\right\rVert\left\lfloor\square\right\rfloor\left\lceil\square\right\rceil\binom{\square}{\square}\boxed{\square}
\begin{cases}\square\\\square\end{cases}\begin{matrix}\square&\square\\\square&\square\end{matrix}\begin{pmatrix}\square&\square\\\square&\square\end{pmatrix}\begin{bmatrix}\square&\square\\\square&\square\end{bmatrix}\begin{Bmatrix}\square&\square\\\square&\square\end{Bmatrix}\begin{vmatrix}\square&\square\\\square&\square\end{vmatrix}\begin{Vmatrix}\square&\square\\\square&\square\end{Vmatrix}\begin{array}{l|l}\square&\square\\\hline\square&\square\end{array}
\to\gets\leftrightarrow\nearrow\searrow\downarrow\uparrow\updownarrow\swarrow\nwarrow\Leftarrow\Rightarrow\Leftrightarrow\rightharpoonup\rightharpoondown\impliedby\implies\Longleftrightarrow\leftharpoonup\leftharpoondown\longleftarrow\longrightarrow\longleftrightarrow\Uparrow\Downarrow\Updownarrow\hookleftarrow\hookrightarrow\mapsto
\alpha\beta\gamma\Gamma\delta\Delta\epsilon\varepsilon\zeta\eta\theta\Theta\iota\kappa\varkappa\lambda\Lambda\mu\nu\xi\Xi\pi\Pi\varpi\rho\varrho\sigma\Sigma\tau\upsilon\Upsilon\phi\Phi\varphi\chi\psi\Psi\omega\Omega\digamma\vartheta\varsigma\mathbb{C}\mathbb{H}\mathbb{N}\mathbb{P}\mathbb{Q}\mathbb{R}\mathbb{Z}\Re\Im\aleph\partial\nabla
\times\cdot\ast\div\pm\mp\circ\backslash\oplus\ominus\otimes\odot\bullet\varnothing\neq\equiv\not\equiv\sim\approx\simeq\cong\geq\leq\ll\gg\succ\prec\in\ni\cup\cap\subset\supset\not\subset\not\supset\notin\not\ni\subseteq\supseteq\nsubseteq\nsupseteq\sqsubset\sqsupset\sqsubseteq\sqsupseteq\sqcap\sqcup\wedge\vee\neg\forall\exists\nexists\uplus\bigsqcup\bigodot\bigotimes\bigoplus\biguplus\bigcap\bigcup\bigvee\bigwedge
\because\therefore\angle\parallel\perp\top\nparallel\measuredangle\sphericalangle\diamond\diamondsuit\doteq\propto\infty\bowtie\square\smile\frown\bigtriangledown\triangle\triangleleft\triangleright\bigcirc \wr\amalg\models\preceq\mid\nmid\vdash\dashv\nless\ngtr\ldots\cdots\vdots\ddots\surd\ell\flat\sharp\natural\wp\clubsuit\heartsuit\spadesuit\oint\lfloor\rfloor\lceil\rceil\lbrace\rbrace\lbrack\rbrack\vert\hbar\aleph\dagger\ddagger

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