# delta < 0有两个虚根 real_part = -b / (2*a) imaginary_part = math.sqrt(-delta) / (2*a) x1 = complex(real_part, imaginary_part) x2 = complex(real_part, -imaginary_part) print(f'方程有两个不同的虚数根:x1={x1:.1f}, x2={x2:.2f}') solve_equation(0, -2, 6) # 您...
print(dir(math)) # 查看模块中的所有函数 print(help(math.pow)) # 查看模块中函数的的使用 print(math.pow(-5, 2)) # 平方函数 (-5)**2=25 print(math.pi) # 模块中的数据 pi,3.1415 print(math.sqrt(25)) # 开方函数 1. 2. 3. 4. 5. 6. 7. 8. 9. 3自定义函数 定义解一元二次...
Micorsoft-Math-solver 微软数学工具 WolframAlpha: inverse of a function/反函数 百度百科-一元三次方程求根公式 【问题描述】 求解一元三次方程 求解一元三次方程: 求解有多种方法,其中Cardano方法得到的解为: 一元三次多项式: => 【代码实现】 现成的包 cardano_method 可以使用python包:安装cardano_method【...
Choosing a Math Programming Solver If you’re in the mood to learn optimization theory, then there’s plenty of math books out there. Here are a few popular choices: Linear Programming: Foundations and Extensions Convex Optimization Model Building in Mathematical Programming Engineering Optimization: ...
Equation 1: Eq(x + y + z, 5)Equation 2: Eq(x - y + z, 5)Equation 3: Eq(x + y - z, 5)Solution: {x: 5, z: 0, y: 0} 두 번째 예제는 다음 Python 코드를 참조하세요. fromsympyimportsymbols,Eq,solve x,y,z=symbols("x y z")equation_1=Eq...
equation=puzzle.translate(dict(zip(characters,guess))) ---下面先解释一下translate()方法--- 在Python中strings有许多种方法,包括lower(),count(),format()等,现在想要介绍一种很少见但功能强大的方法:translate() translate_table={ord('A'):ord('O')} print(translate...
E. Hairer and G. Wanner Universite de Geneve, Dept. de Mathematiques CH-1211 Geneve 24, Switzerland e-mail:ernst.hairer@math.unige.ch,gerhard.wanner@math.unige.ch This code is described in[HNW93]. This integrator accepts the following parameters in set_integrator() method of the ode clas...
Linear algebra functions, including elementary functions of a matrix, such as the trace, determinant, norm and condition number; basic solver forAx=b; specialized solvers for Toeplitz matrices, circulant matrices, triangular matrices and other structured matrices; least-squares solver and pseudo-inverse...
# Solving 2nd order Ordinary differential equation import math import matplotlib.pyplot as plt import numpy as np from scipy.integrate import odeint # Parameters b = 0.05 g = 9.81 l = 1 m = 1 # Initial Condition i_c = [0,3] # Time Points t_span = np.linspace(0,20,1000) #mot...
Sympy 还可以利用 print_mathml() 输出MathML 源码, 例如, 在上面的示例代码中添加 print_mathml(expr), 即可 (别忘记 from sympy import print_mathml). Sympy 输出 Python 代码 Sympy 还可以利用 python() 输出Python 源码, 例如, 在上面的示例代码中添加 print(python(expr)), 即可 (别忘记 from sympy...