Python >>> complex(3) == 3 + 0j True >>> complex() == 0 + 0j True The single-argument version can be useful in type casting. For example, you can pass a nonnumeric value like a string literal to obtain a corre
nan) # Complex number: zero real part and NaN imaginary part print("NaN complex value:", cmath.nanj) The outputs are:pi: 3.141592653589793 e: 2.718281828459045 Positive infinity: inf Positive complex infinity: infj NaN value: nan NaN complex value: nanj ...
来自专栏 · Python学习进阶 2 人赞同了该文章 英文文档: class complex([real[, imag]]) Return a complex number with the value real + imag*1j or convert a string or number to a complex number. If the first parameter is a string, it will be interpreted as a complex number and the functi...
class complex([real[, imag]]) Return a complex number with the value real + imag*1j or convert a string or number to a complex number. If the first parameter is a string, it will be interpreted as a complex number and the function must be called without a second parameter. The second...
Return Value from complex() As suggested by the name, complex() method returns a complex number. If the string passed to this method is not a valid complex number, ValueError exception is raised. Note: The string passed to complex() should be in the form real+imagj or real+imagJ Exampl...
Python内置函数(13)——complex 英文文档: classcomplex([real[,imag]]) Return a complex number with the valuereal+imag*1j or convert a string or number to a complex number. If the first parameter is a string, it will be interpreted as a complex number and the function must be called ...
Python3.6内置函数——complex 英文文档 Return a complex number with the valuereal+imag*1j or convert a string or number to a complex number. If the first parameter is a string, it will be interpreted as a complex number and the function must be called without a second parameter. The second...
Python内置函数(13)-complex 官方文档 classcomplex([real[,imag]]) Return a complex number with the valuereal+imag*1j or convert a string or number to a complex number. If the first parameter is a string, it will be interpreted as a complex number and the function must be called without ...
python-Redis的String、Hash操作 2019-12-11 17:16 − Redis redis是一个key-value存储系统。赋值:set name alex查看所有key:keys *查看key对应的value:get name只存活2秒钟:set name jack ex 2 Python操作Redissudo pip install redis 1、操作模式r... 忆梦,惊梦 0 857 python—Yaml 2019-11-27 ...
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