Numerical integration of ordinary integrals and line integrals. 一般的積分以及線(xiàn)積分的數值積分。
If the field changes slowly, we can replace the time integral by a line integral over the unperturbed orbit. 如果場(chǎng)緩慢改變,我們能夠用未擾動(dòng)軌道的線(xiàn)積分來(lái)代替時(shí)間積分。