Integer division always zero [duplicate]
You are doing integer division.
Try the following and it will work as expected:
int x = 17;
double result = 1.0 / x;
The type of the 1
in the expression you have above is int
, and the type of x
is int. When you do int / int
, you get an int back. You need at least one of the types involved to be floating point (float
or double
) in order for floating point division to occur.
Unlike in Mathematics, division in C++ can either refer to truncated integer division (what you did) or floating point division (what I did in my example). Be careful of this!
In my example, explicitly what we have is double / int -> double
.
Division in double variable returning always zero [duplicate]
The result of 80/100
(both integers) is always 0.
Change it to 80.0/100.0
Division result is always zero [duplicate]
because in this expression
t = (1/100) * d;
1 and 100 are integer values, integer division truncates, so this It's the same as this
t = (0) * d;
you need make that a float constant like this
t = (1.0/100.0) * d;
you may also want to do the same with this
k = n / 3.0;
Division returns zero
You are working with integers here. Try using decimals for all the numbers in your calculation.
decimal share = (18m / 58m) * 100m;
Division of integers returns 0
You should cast before you divide, but also you were missing a subquery to get the total count from the table. Here's the sample.
select
random_int,
count(random_int) as Count,
cast(count(random_int) as decimal(7,2)) / cast((select count(random_int) from test) as decimal(7,2)) as Percent
from test
group by random_int
order by random_int;
C - Division returns zero
int intValue, menuSelect,Results;
So Results
is declared as int
.
When you assign it to your function result, it gets rounded/truncated (probably not what you want, but only part of the issue).
The fact that 0.0
is printed is because you're using %lf
format in printf
, which doesn't match int
data type, and no conversion is performed here, since printf
uses variable arguments and trusts the caller (some compilers issue warnings though).
Quickfix:
double Results;
should be enough.
Division in Java always results in zero (0)? [duplicate]
You're doing integer division.
You need to cast one operand to double
.
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