1+2=x1+2=x1+2=x x2+1=3y2x^2+1=3y_2 x2+1=3y2 (βmc2+c(∑n=13αnpn))ψ(x,t)=iℏ∂ψ(x,t)∂t\left(\beta m c^2 + c \left(\sum_{n=1}^3\alpha_n p_n\right)\right) \psi(x,t) = i\hbar \frac{\partial \psi(x,t)}{\partial t} (βmc2+c(n=1∑3αnpn))ψ(x,t)=iℏ∂t∂ψ(x,t) eiθ=cosθ+isinθe^{i\theta}=\cos \theta+i\sin \theta eiθ=cosθ+isinθ ∫110000x=666 666\displaystyle \int_1^{10000} \sqrt x = 666 \, 666 \\∫110000x=666666