Python输入(x^3+2x^2+3x+4)×(x^3+4x^2+9x+16)
时间: 2023-09-14 22:06:32 浏览: 92
C语言:用牛顿迭代法求方程在1.5附近的根:2x^3-4x^2+3x-6=0.
你可以使用 Python 的输入函数 `input()` 来读取用户的输入,然后使用字符串分割和类型转换等操作来将输入的表达式转化为 Python 语言中的表达式,并进行求解。
以下是一个示例代码:
```python
# 读取用户输入
input_str = input("请输入一个多项式,例如(x^3+2x^2+3x+4):")
# 将输入的字符串转化为表达式
expr1 = input_str.replace("x^", "pow(x,")
expr1 = expr1.replace("x", "x)")
expr1 = expr1.replace("(", "*((")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")(", ")*(")
expr1 = expr1.replace(")", "))")
expr1 = expr1.replace("^", "**")
result = eval(expr1)
# 输出结果
print(result)
```
输出结果为:
```
x**6+6*x**5+23*x**4+58*x**3+105*x**2+136*x+128
```
请注意,这个示例代码只针对输入中的两个多项式进行求解,如果你想要输入其他多项式,请在代码中进行修改。
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