Peng Yu wrote:
On Sun, Sep 20, 2009 at 9:37 AM, Grant Edwards <inva...@invalid.invalid> wrote:
On 2009-09-20, Peng Yu <pengyu...@gmail.com> wrote:
Suppose I want to define a function that return the minimum number
that can be represented.
def f(x):
#body
That it, if I call f(10), f will return the minimum integer that can
be represented in the machine; if I cal f(10.5), f will return the
minimum float that can be represented in the machine.
Could somebody let me know what should be in the function body?
The stuff you wan is in the "sys" module.
For example:
sys.float_info
sys.floatinfo(max=7976931348623157e+308, max_exp24,
max_10_exp08, min=2.2250738585072014e-308, min_exp=-1021,
min_10_exp=07, dig, mant_digS, epsilon=2.2204460492503131e-16, radix=2,
rounds=1)
sys.maxint
2147483647
You might also want to read up on the type() builtin
I want avoid using any 'if' statement. In C++, I can use template. How
to do not use 'if' statement in python?
Regards,
Peng
So if the homework assignment is for C++, do it in C++. If this is
supposed to be some kind of programming challenge, then you need to
state all the rules up front. For example, you could write something like
def f(x):
return [-10, 42][2*x - 20]
and it'll return -10 for value 10 and 42 for value 10.5
Or:
def f(x):
result = raw_input("What's the smallest value of the same type as "
+ str(x))
return result
And of course if the constraint is not to use the if statement, and you
can use Python 2.6, how about a conditional expression?
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