loop

[pabloeruggeri]

Hello,

I'm trying to create a for loop that starts at 100 and goes to 10Mllion. The increments are like this: 100, 1000, 10000, ..... Basicaly adding a zero each iteration. I'm having problems trying to do it. Can somebody help me

 

[MRAB]

Hello,

I'm trying to create a for loop that starts at 100 and goes to
10Mllion. The increments are like this: 100, 1000, 10000, .....
Basicaly adding a zero each iteration. I'm having problems trying to
do it. Can somebody help me

Probably better to use a 'while' loop instead, multiplying by 10 on
each iteration until the number exceeds 10 million.

 

[Chris Angelico]

Hello,

I'm trying to create a for loop that starts at 100 and goes to 10Mllion. The increments are like this: 100, 1000, 10000, ..... Basicaly adding a zero each iteration. I'm having problems trying to do it. Can somebody help me

That sounds like a logarithmic scale. Look at this:

1000
....

10000000

Do you know how to iterate from 2 to 7 inclusive?

ChrisA

 

[Mark Lawrence]

Hello,

I'm trying to create a for loop that starts at 100 and goes to 10Mllion. The increments are like this: 100, 1000, 10000, ..... Basicaly adding a zero each iteration. I'm having problems trying to do it. Can somebody help me

Start by rereading this
http://docs.python.org/3/tutorial/controlflow.html#for-statements, give
it another go and if you have problems post your code inline here and
we'll help you out.

 

[pabloeruggeri]

Thanks!!

 

[anton]

for i in (10**p for p in range(3, 8)):
print(i)

 

[Mark H Harris]

for i in (10**p for p in range(3, 8)):
print(i)

Never do their home-work for them; but, in this case, what the heck.

 

[Marko Rauhamaa]

That sounds like a logarithmic scale.

How about:

for i in [ 100, 1000, 10000, 100000, 1000000, 10000000, 100000000 ]:
...


Marko

 

[Mark Lawrence]

That sounds like a logarithmic scale.

How about:

for i in [ 100, 1000, 10000, 100000, 1000000, 10000000, 100000000 ]:
...

Why the overhead of creating a list when you could use a tuple?

 

[Marko Rauhamaa]

for i in [ 100, 1000, 10000, 100000, 1000000, 10000000, 100000000 ]:

Why the overhead of creating a list when you could use a tuple?

Once in college, we were given assembly programming assignments. The
textbook defined an imagined 18-bit CPU and an instruction set.

A fellow student was given the task to write a subroutine that
calculates the factorial of the argument. He went through the trouble of
creating a loop with multiplication etc. I argued (in vain) that his
solution is "wrong" from all angles; he should have implemented his
subroutine with a simple lookup table since 18 bits can only take a
handful of input values (0 through 8).


Marko

 

[Chris Angelico]

Once in college, we were given assembly programming assignments. The
textbook defined an imagined 18-bit CPU and an instruction set.

A fellow student was given the task to write a subroutine that
calculates the factorial of the argument. He went through the trouble of
creating a loop with multiplication etc. I argued (in vain) that his
solution is "wrong" from all angles; he should have implemented his
subroutine with a simple lookup table since 18 bits can only take a
handful of input values (0 through 8).

The task was "calculates". If the task was "returns", then the lookup
table would be correct.

ChrisA