{"type":"rich","version":"1.0","title":"Harmonic oscillator equation","html":"<span class=\"wb-embed wb-embed-math\" data-latex=\"\\frac{d^{2}x}{dt^{2}}+\\omega_{0}^{2}x=0\">\\frac{d^{2}x}{dt^{2}}+\\omega_{0}^{2}x=0</span>","width":640,"height":320}