Note: indentation is not preserved in the blog, so cut-and-paste from here does not work

1. A function definition has parameters in two forms

<br /> def func(x, n=1):<br /> ...<br />

What holds for calling the functions

a. The first passed argument is assigned to x and the second to n
b. The second argument is always called in keyword form.
c. The first argument is mandatory, the second optional
d. The second argument is always initialized to 1

1. Consider the following code

<br /> ndef = 1<br /> def func(x, n=ndef):<br /> print "x is ", x, and "n is ",n<br /> #...<br /> func(3.14)<br /> #...<br /> ndef = 10<br /> func(3.14)<br />

What do you observe? Is it what you expected? Can you explain your observation?