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Math Blogging

A TeX component comes to Powpress

Now you can use TeX components in Powpress to write mathematical expressions. To use this feature:

  1. Click the "TeX" button to insert a TeX editor block
  2. Type in a TeX expression
  3. Save

To check out the supported functions, please check the manual here. Here are some examples:


\begin{aligned}
\nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} & = \frac{4\pi}{c}\vec{\mathbf{j}} \\   
\nabla \cdot \vec{\mathbf{E}} & = 4 \pi \rho \\
\nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} & = \vec{\mathbf{0}} \\
\nabla \cdot \vec{\mathbf{B}} & = 0 \end{aligned}
×B1cEt=4πcjE=4πρ×E+1cBt=0B=0\begin{aligned} \nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} & = \frac{4\pi}{c}\vec{\mathbf{j}} \\ \nabla \cdot \vec{\mathbf{E}} & = 4 \pi \rho \\ \nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} & = \vec{\mathbf{0}} \\ \nabla \cdot \vec{\mathbf{B}} & = 0 \end{aligned}

\left(\!
    \begin{array}{c}
      n \\
      r
    \end{array}
  \!\right) = \frac{n!}{r!(n-r)!}
( ⁣nr ⁣)=n!r!(nr)!\left(\! \begin{array}{c} n \\ r \end{array} \!\right) = \frac{n!}{r!(n-r)!}

k = a + \cfrac{1}{b 
          + \cfrac{1}{c 
          + \cfrac{1}{d 
          + \cfrac{1}{e 
          + \cfrac{1}{f 
          + \cfrac{1}{g 
          + \cfrac{1}{h 
          + \cfrac{1}{i 
          + \cfrac{1}{j} } } } }}}}}
k=a+1b+1c+1d+1e+1f+1g+1h+1i+1j k = a + \cfrac{1}{b + \cfrac{1}{c + \cfrac{1}{d + \cfrac{1}{e + \cfrac{1}{f + \cfrac{1}{g + \cfrac{1}{h + \cfrac{1}{i + \cfrac{1}{j} } } } }}}}}

\sqrt[n]{1+x+x^2+x^3+\dots+x^n}
1+x+x2+x3++xnn\sqrt[n]{1+x+x^2+x^3+\dots+x^n}

\left(\frac{1}{\sqrt{x}}\right)
(1x)\left(\frac{1}{\sqrt{x}}\right)

z = \overbrace{
   \underbrace{x}_\text{real} + i
   \underbrace{y}_\text{imaginary}
  }^\text{complex number}
z=xreal+iyimaginarycomplex numberz = \overbrace{ \underbrace{x}_\text{real} + i \underbrace{y}_\text{imaginary} }^\text{complex number}

u(x) = 
  \begin{cases} 
   \exp{x} & \text{if } x \geq 0 \\
   1       & \text{if } x < 0
  \end{cases}
u(x)={expxif x01if x<0u(x) = \begin{cases} \exp{x} & \text{if } x \geq 0 \\ 1 & \text{if } x < 0 \end{cases}

x = a_0 + \frac{1}{a_1 + \frac{1}{a_2 + \frac{1}{a_3 + a_4}}}
x=a0+1a1+1a2+1a3+a4x = a_0 + \frac{1}{a_1 + \frac{1}{a_2 + \frac{1}{a_3 + a_4}}}

\lim_{x\to 0}{\frac{e^x-1}{2x}}
\overset{\left[\frac{0}{0}\right]}{\underset{\mathrm{H}}{=}}
\lim_{x\to 0}{\frac{e^x}{2}}={\frac{1}{2}}
limx0ex12x=H[00]limx0ex2=12\lim_{x\to 0}{\frac{e^x-1}{2x}} \overset{\left[\frac{0}{0}\right]}{\underset{\mathrm{H}}{=}} \lim_{x\to 0}{\frac{e^x}{2}}={\frac{1}{2}}

f(x) = a x^2+b x +c
f(x)=ax2+bx+cf(x) = a x^2+b x +c

\frac{d}{dx}\left( \int_{0}^{x} f(u)\,du\right)=f(x).
ddx(0xf(u)du)=f(x).\frac{d}{dx}\left( \int_{0}^{x} f(u)\,du\right)=f(x).

e^{ \pm i\theta } = \cos \theta \pm i\sin \theta
e±iθ=cosθ±isinθe^{ \pm i\theta } = \cos \theta \pm i\sin \theta
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Wow.. used that about 25y ago. Nice
Now you can write Bitcoin Whitepaper with Powpress.
miggy replied:
Hey, that is very cool my man! Good job.
hv_ replied:
How about data plotting / charts?
Powping... “Own your homework!”
So satisfying to watch :P Life has just gotten a little bit better, hasn't it? Thanks for your efforts unwriter!
unwriter replied:
Thank you.