This question already has answers here:
Round to nearest five
(5 answers)
How do you round a number to two decimal places in C#?
(15 answers)
Closed 8 years ago.
I'm trying to round the following number as follows:
6.89 <- dollars and cents
I need to use this number in calculations rounded down to the nearest 10c.
Therefore I need: 6.80
To clarify I need a way to obtain the following example results:
1.32 --> 1.30
1.55 --> 1.50
6.89 --> 6.80
I can't seen how this can be done with Round or Floor.
Just use this, I don't see any error with that, and works well with your examples.
Math.Floor (number*10)/10
Related
This question already has answers here:
Built in .Net algorithm to round value to the nearest 10 interval
(8 answers)
Rounding integers to nearest multiple of 10 [duplicate]
(6 answers)
Closed 2 years ago.
how to round up number upper or lower in the simplest way?
for example
36 >>> 40
33 >>> 30
Check out the documentation for System.Math.Round. You can specify whether you want to round up/down as well as the interval you want to round to.
This question already has answers here:
Why does integer division in C# return an integer and not a float?
(8 answers)
Closed 3 years ago.
I'm making a simple calculator in c# and and everything works well until I try dividing numbers that should give decimal places. How to display 2 decimal places in these cases?
I've tried putting #.## after .ToString.
{label1.Text = (divide / Convert.ToInt64(label1.Text)).ToString("#.##");}
I expect the output of 5/4 to be 1.25, but it is 1.
convert the number to float instead of int,
{label1.Text = ((float)divide / float.Parse(label1.Text)).ToString("n2");}
This question already has answers here:
C# - Math.Round
(5 answers)
Closed 4 years ago.
Following values i would like to convert to round off figure. likes:
60.72 --> 60.70
170.76 --> 170.80
Currently, I'm converted to round off value using below method:
getFee.ServiceRequestFee.ToString("N")
I'm not sure which Match.Round method suitable to my requirement.
Edit:
protected string Getroundoffdecimalvalue(string servicerequestsfee_val)
{
servicerequestsfee_val = Math.Round(Convert.ToDecimal(servicerequestsfee_val), 2).ToString();
return servicerequestsfee_val;
}
I used this function even after i return 60.72 only and my expectation should 60.70.
Math.Round(yourNumber, 1)
The second parameter is number of decimal places to round to. In your case you want 1 decimal place as an end result.
**
You need to overloadMath.round that takes the decimals parameter of
your choice and convenience.
**
Use Math.round and if needed convert the same to string.
Math.Round(var_name,2)
This question already has answers here:
Is floating point math broken?
(31 answers)
Closed 5 years ago.
when divide in c# Answer is different and when i divide from calculator answer is different kindly solve it.
c#
double div=(double)100000/30/9;
Answer 370.37037037037038
370.37037037037038*9*30 //100000.0000000000026
in calculator
Answer 370.3703703703704
370.3703703703704*9*30 //100000
i need exact answer like a calculator.
The difference is simply one of rounding. That is not a rational number, it has a repeating sequence, and cannot be perfectly expressed in binary code. It cannot even be expressed with a finite number of digits in decimal. The only difference there is that your calculator displays fewer digits than the C# double.
The final '04' is simply your calculator rounding '038' upward.
This question already has answers here:
Double vs Decimal Rounding in C#
(2 answers)
Closed 7 years ago.
I am doing following equation but the result is not as expected
double dasdas = Math.Abs(3.2 - 1.9);
The result is
1.3000000000000003
However the correct result should be
1.3
What may be the reason of this?
c# 4.5.2
This is because you're using a double - which is a floating point. These by definition this cannot store the exact number.
You need to use Decimal.
Take at look at here and What Every Computer Scientist Should Read About Floating Point
Use decimal:
decimal dasdas = Math.Abs(3.2m - 1.9m);