second order equation

基本解釋

The general solution of a kind second order equation is given.
給出一類二階變系數(shù)線性微分方程的通解。
And experiments proved that the reaction rules of isocyanate and water could be described by the second order equation.
實(shí)驗(yàn)證明室溫下異氰酸酯與水的反應(yīng)可以使用準(zhǔn)二級(jí)方程描述。
In this paper, the existence of sign-changing solutions to a class of nonlinear second order equation with three-point boundary value problems is discussed.
研究一類非線性二階方程三點(diǎn)邊值問題變號(hào)解的存在性。