[Summation Code]

That sounds like a homework question, and you didn't even specify a language.

I'll give you a hint, the obvious solution is to use two loops, one nested in the other. But if you know the length of the list before starting, you can do it with just one loop.

Heh, on second thought you don't even need to know the length of the list.

the language is python

[Summation Code]

How to write the code for summation of alist of number

eg ( 0, 1, 2, 3, 4)

it means

(0)+(0 + 1)+(0+1+2)+(0+1+2+3)+(0+1+2+3+4)

tks

[Current Time]

how to write the code to display the current time ?

[Retrieve A Data In A File]

hmm....

because i am using this number in "a" in a formula.

for example: x = a * 100

so x will return me a list of difference answer with difference input of "a"

get what i mean?

[Retrieve A Data In A File]

read = open('rules.txt', 'r')

a = read.readlines()

arr = []

for ruleline in a:

arr.append(ruleline.split()[1])

print arr

-----------------------------------

['5510/2']

['5510/2', '2490/1']

['5510/2', '2490/1', '4728/2']

['5510/2', '2490/1', '4728/2', '1940/1']

['5510/2', '2490/1', '4728/2', '1940/1', '1940/1']

['5510/2', '2490/1', '4728/2', '1940/1', '1940/1', '5510/3']

---------------------------------------------------------------

it keeps repeating. how come?

[Retrieve A Data In A File]

tks so much for the quick reply.

ya. i done it

[Retrieve A Data In A File]

Sorry, i dont get what u mean ...

which part of my coding is wrong? and how shd it be change?

[Retrieve A Data In A File]

read = open('sample.txt', 'r')

a = read.readlines()

arr = []

for ruleline in a:

for ruledata in ruleline[2:9]:

arr.append(ruledata)

print arr,

what is wrong with this code? it prints ['5'] ['5', '5'] ['5', '5', '1'] ['5', '5', '1', '0'] ['5', '5', '1', '0', '/'] ['5', '5', '1', '0', '/', '2'] ['5', '5', '1', '0', '/', '2', ' '] .....

what I want is 5510/2, not seperating them...

pls guide me.

[Retrieve A Data In A File]

1 5510/2 if then Date = 03/17/1999 03/18/1999

2 2490/1 if DA0=100 then DA1 = 112

3 4728/2 if F2=.AP then F1 = .S .AS

i have this data in a txt file. now i need to retrieve 5510/2, 2490/1, 4728/2 ONLY. how do i do that in python?

[Anyone Here Who Is Know Both Python And C++ ?]

now i got other problem.

t = len(a) * 0.6

t will definitly be a decimal. how can i change it to the whole number without the decimal, so that i can apply to n in foo[m:n].

n has to be integer

[Anyone Here Who Is Know Both Python And C++ ?]

tks

[Anyone Here Who Is Know Both Python And C++ ?]

this is my python code

----------------------------------

read = open('sample.txt', 'r')

a = read.readlines()

for line in a :

print line,

------------------------------------

the above code will print all the line in the file. but if i wan it to print only certain % of the line(for example: 50% of the line). how do i code it?

[Anyone Here Who Is Know Both Python And C++ ?]

i need some help with some c++ coding.

i need to convert c++ coding to python. anyone can help me?

[Anyone Here Who Is Know Both Python And C++ ?]