method of variation of parameters

參數變換法（英語：variation of parameters），也称为常数變換法，是求解非齐次线性常微分方程的一种通用方法。 对于一阶非齐次线性微分方程，通常可以通过积分因子或待定系数以相当少的努力找到解，尽管这些方法利用涉及猜测的启发式方法并且不适用于所有非齐次线性微分方程。

Staiger K; et al. Expression of adiponectin receptor mRNA in human skeletal muscle cells is related to in vivo parameters of glucose and lipid metabolism

{\displaystyle \lambda {}=x} 替换，无需加常数（明确说明）。 微分方程 偏微分方程 Mathematical Handbook of Formulas and Tables (3rd edition), S. Lipschutz, M.R. Spiegel, J. Liu, Schuam's

resolution length sorting, with length variation of <10%, has thus far been achieved by size exclusion chromatography (SEC) of DNA-dispersed carbon nanotubes

Patterns of genetic variation in Southern Hemisphere blue whales, and the use of assignment test to detect mixing on the feeding grounds. Journal of Cetacean