>From the Python documentation at https://docs.python.org/3/tutorial/controlflow.html#lambda-expressions
> Small anonymous functions can be created with the lambda <https://docs.python.org/3/reference/expressions.html#lambda> keyword. This function returns the sum of its two arguments: lambda a, b: a+b. Lambda functions can be used wherever function objects are required. They are syntactically restricted to a single expression. Semantically, they are just syntactic sugar for a normal function definition. Thus, in your case the lambda is equivalent to: def line(x): return x + 3 Cheers, Timo On Sat, Jun 2, 2018 at 1:12 PM Sharan Basappa <sharan.basa...@gmail.com> wrote: > Can anyone please tell me what the following line in a python program does: > > line = lambda x: x + 3 > > I have pasted the entire code below for reference: > > from scipy.optimize import fsolve > import numpy as np > line = lambda x: x + 3 > solution = fsolve(line, -2) > print solution > -- > https://mail.python.org/mailman/listinfo/python-list > -- *Timo Furrer* https://github.com/timofurrer tuxt...@gmail.com -- https://mail.python.org/mailman/listinfo/python-list
