物理學中質量有不同定義,例如在研究慣性時有慣性質量,動力學是有本質量,但在已知的科學范圍內,這兩者等價。一句話,物理學不同部分對質量定義不同。
已知自變量X誤差量為x,x很小
因變量Y誤差量F(X+x)-F(X)=a1+a2*x+a3*x^2+a4*x^3.......
只取到第二項的叫一級近似,同理有0級,2級等等
數學:Linear and linear equations, set theory and probability, statistics, linear programming, indices and logarithms, algebra, analytic geometry, trigonometry, calculus, numerical methods and vectors
物理:Newton's laws, force, electricity, light, magnetic
化學:Energy conservation, acid balance, dynamics and organic chemistry, chemical equations, Moore, redox, thermodynamics and bonding, atomic structure