物理学中质量有不同定义,例如在研究惯性时有惯性质量,动力学是有本质量,但在已知的科学范围内,这两者等价。一句话,物理学不同部分对质量定义不同。
已知自变量X误差量为x,x很小
因变量Y误差量F(X+x)-F(X)=a1+a2*x+a3*x^2+a4*x^3.......
只取到第二项的叫一级近似,同理有0级,2级等等
数学: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
化学:Energy conservation, acid balance, dynamics and organic chemistry, chemical equations, Moore, redox, thermodynamics and bonding, atomic structure