CODEWITHSUNDEEP
python
bat-orgil
bat-orgil

Reputation: 3

How to use increments in Python

def number():
    b = 0.1
    while True:
        yield b
        b = b + 0.1
       
b = number()
for i in range(10):
    print(next(b))

Outputs

0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0.9999999999999999

Then, I just want

c=b*2
print("c="=)

My expected outputs are

c=0.2
0.4
0.6
0.8
1
1.2

And so on.

Could you tell me what I have to do to get my expected outputs?

Upvotes: 0

Views: 92

Answers (3)

user4308987
user4308987

Reputation:

Like this?

for i in range(10):
    AnotherB=next(b)
    c=AnotherB*2

    print(AnotherB)
    print("c="+str(c))

or do you mean how do you reset a yeild? just redeclare it.

def number():
    b = 0.1
    while True:
        yield round(b,1)
        b = b + 0.1
       
b = number()
for i in range(10):
    print(next(b))
    
b=number()
for i in range(10):
    print("c="+str(next(b)*2))

Upvotes: 0

user15801675
user15801675

Reputation:

You can pass the number as an argument:

def number(start=0.1,num=0.1):
    b = start
    while True:
        yield round(b,1)
        b += num
       
b = number(0,0.2)

It yields:

0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8

Upvotes: 0

Amadan
Amadan

Reputation: 198566

Floating point numbers are not precise. The more you handle them, the more error they can accumulate. To have numbers you want, the best way is to keep things integral for as long as possible:

def number():
    b = 1
    while True:
        yield b / 10.0
        b += 1

Upvotes: 2

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