Question

尝试解决一组指数方程，但不断收到错误，指出＆＃34;无法转换浮点数＃34;或＆＃34;浮动不可调用＆＃34;

您可以运行代码，只需将变量替换为您喜欢的任何值。

from sympy.abc import x, y
import numpy as np
import sympy as sp
import math 

A0 = 58
G0 = 44
Gmax = 117
tmax = 40

s=[((sp.log(x) - sp.log(y)) - (tmax*(x-y))), (Gmax- G0 - (A0 * x /(y-x))*((sp.exp((-x)*tmax)) - (sp.exp((-y)*tmax))))]
sp.solve(s, x, y)

Answer 1

删除数学并使用sympy for log和exp

from sympy.abc import x, y
import numpy as np
import sympy as sp
Gmax = np.amax(all_training_df.iloc[1])
tmax = np.argmax(all_training_df.iloc[1])
A0 = all_combined_df.iloc[1]['CHO (g)']
G0 = all_combined_df.iloc[1]['mg/dL']
s=[((sp.log(x) - sp.log(y)) - (tmax*(x-y))), (Gmax- G0 - (A0 * x /(y-x))*((sp.exp((-x)*tmax)) - (sp.exp((-y)*tmax))))]
sp.solve_poly_system(s, x, y)

求解python中的指数方程组

1 个答案: