Help on class complex in module __builtin__: class complex(object) | complex(real[, imag]) -> complex number | | Create a complex number from a real part and an optional imaginary part. | This is equivalent to (real + imag*1j) where imag defaults to 0. | | Methods defined here:...
Python complex() 函数 Python 内置函数 描述 complex() 函数用于创建一个值为 real + imag * j 的复数或者转化一个字符串或数为复数。如果第一个参数为字符串,则不需要指定第二个参数。。 语法 complex 语法: class complex([real[, imag]]) 参数说明: real --
real,表示复数的实部。 imag,表示复数的虚部。 复数的操作 复数加法 下面是 cpython 当中对于复数加法的实现,为了简洁删除了部分无用代码。 staticPyObject * complex_add(PyObject *v, PyObject *w) { Py_complex result; Py_complex a, b; TO_COMPLEX(v, a);// TO_COMPLEX 这个宏的作用就是将一个 ...
1. complex([real[,imag]]) 返回一个复数,实部 + 虚部*1j,或者把字符串或者数字转成复数形式。 参数可以是复数表达式,也可以是字符串。当参数是字符串的时候,数字与操作符之间不能有空格。即comple('1 + 2j')是错误的。 print(complex(1, 2)) print(complex(1 + 2j)) print(complex('1+2j')) #...
然而,如果你在构造虚数矩阵时遇到了ComplexWarning: Casting complex values to real discards the imaginary part警告,这通常是因为你在将复数转换为实数时丢弃了虚部。要解决这个问题,你需要确保在操作复数时不要将其转换为实数。可以使用NumPy库中的complex函数来创建复数,而不是直接使用实数和虚数相加的方式。这样...
# 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_quad(0, -2, 6) # 您输...
The X-axis on the complex plane, also known as the Gauss plane or Argand diagram, represents the real part of a complex number, while the Y-axis represents its imaginary part.This fact leads to one of the coolest features of the complex data type in Python, which embodies a rudimentary ...
You’ve come a long way now, having figured out how to create all kinds of decorators. You’ll wrap it up, putting your newfound knowledge to use by creating a few more examples that might be useful in the real world. Slowing Down Code, Revisited As noted earlier, your previous implemen...
百度试题 题目关于Python中的复数,下列说法错误的是? 虚部必须后缀j,且必须是小写表示复数的语法是real+imagej实部和虚部都是浮点数complex(x)会返回以x为实部,虚部为0的复数 相关知识点: 试题来源: 解析 虚部必须后缀j,且必须是小写 反馈 收藏
| | --- | Data descriptors defined here: | | imag | the imaginary part of a complex number | | real | the real part of a complex number 返回从数字或字符串 x 生成的浮点数。 如果实参是字符串: 它必须是包含十进制数字的字符串; 通常是 Python 整数或浮点数的字符串形式; 也可以...