α-wwwiki

user:none (1512 bytes)

_h1 mathML & [[mathML2]]
_p {i It works in Firefox, Safari but not  (yet ?) in Chrome ! }
{math {@ style="display:block;text-align:center;font-size:2em;"}
{msup {mo R}{mi αβ}} {mo -}{mfrac {mn 1}{mn 2}}{msup {mo g}{mi αβ}}{mo .}{mo R}
{mo =}{mfrac {mrow {mi 8πG}}{msup {mo c}{mn 4}}}{msup {mo T}{mi αβ}}
}

_h2 code

{pre °°
{math {@ style="display:block;text-align:center;font-size:2em;"}
   {msup {mo R}{mi αβ}} 
   {mo -}
   {mfrac {mn 1}{mn 2}}{msup {mo g}{mi αβ}}{mo .}{mo R}
   {mo =}
   {mfrac {mrow {mi 8πG}}{msup {mo c}{mn 4}}}{msup {mo T}{mi αβ}}
}
°°}

_h1 maxwell's equations

{div {@ style="font-size:2em; background:#ffe; border:1px dashed black; margin:10px 80px; padding:10px;"}
{math {@ style="display:block;text-align:center;"}
   {mo ∇}{mi ×}{mo E}{mo =}{mfrac {mo r} {msub {mo ε}{mi 0}}}
}
{math {@ style="display:block;text-align:center;"}
   {mo ∇}{mi ×}{mo E}{mo +} {mfrac {mo ∂B} {mo ∂t} } {mo =}{mn 0}
}

{math {@ style="display:block;text-align:center;"}
   {mo ∇}{mi ×}{mo B}{mo =}{mn 0}
}

{math {@ style="display:block;text-align:center;"}
   {mo ∇}{mi ×}{mo B}{mo -}{msub {mi µ}{mi 0}}{msub {mi ε}{mi 0}}{mfrac {mo ∂E}{mo ∂t}}{mo =}{msub {mo µ}{mn 0}}{mi j}
}
}

{pre {@ style="font-size:3em;text-align:center;"}
{math
   {mrow {mo x} {mo =}
   {mfrac {mrow {mrow {mo -}{mi b}}{mo ±} 
      {msqrt {mrow {msup {mi b}{mn 2}}{mo -}{mrow {mn 4}{mi a}{mi c}}}}}
      {mrow {mn 2}{mi a}}}
   }
}
}