Rounding up of a float value

i need some help in rounding up the float value to two places after the decimal point
i have a value like 25.34446789 and i need to round it up like 25.34

i tried this function but i am not getting the result
correctly .if i am using the round () function i am
getting a value like 55.0 when the original value is
55.085673.
i want to get it like 55.09. round to two places
after the decimal point .is there any other way to do
it ?How about doing what Chuck said you should do? Give it a try and think about what he wrote. It may actually work.

Similar Messages

Rounding ist wrong for float value (MS SQL 2005)

Hello
I have a simple report with a command:
select num = convert(float, 4.145)
Field round over "Format Field" or ToText( num, 2) the result is 4.14 -> Wrong
if i use Round(num, 2) result is 4.15 --> OK
In CR 8.5 result is always correct
Thx

I know the problematic of the floating values.
My big trouble is the inconsistency in the report!
It can't be that the formula function Round(x,y) show another result than the integrated field-rounding function.
Also in the formula that ToText(x, y) is different to Round(x,y).
Following another stupid difference:
Command.num = 4.145 Result: TRUE
Command.num - 4.145 = 0 Result: FALSE
Mathematical it's the same.
CR8 was consistence, after migration we have different result on our reports!

Rounding a float value

totalamount = totalamount + Float.parseFloat(amount1);
From the above code I am getting totalamount which is of float datatype. The value has more than two decimals like 123.23232 I need to round it to 123.23. How could this be done ? Any help is appreciated.

You can do the following to round to two figures after the decimal point, rounding to the nearest neighbor, if they are equidistant, round up:
totalamount = totalamount + Float.parseFloat(amount1);
BigDecimal bigDecimal =new BigDecimal(totalamount ).setScale(2,bigDecimal.ROUND_HALF_UP);
I hope this helps,
Val.

Limit a float value to single decimal place after round off

41.231445 is float value . How can I limit this to a single decimal place after round off?
ie; 41.2
Any help in this regard will be well appreciated with dukes.
Regards,
Anees

Also read this: [http://java.sun.com/docs/books/tutorial/i18n/format/decimalFormat.html]

Logging float values in a MySQL : wrong fromatting

Hi,
I'm using TS with standard DB schema for MySQL to log results from my tests.
Some of the test are standard numeric limit tests (no adapter). Limits and data source are float numbers.
Most of the time everything is well logged in the MySQL DB, but sometimes the floating value is rounded !
You can see attached the result in the database and the value from the result which has been logged. In the resultList the data is weel formatted but in MySQL it's rounded.
The screen copy shows several numeric limit tests, these numeric limits are in fact the same step which is called at several moments in my sequence. So it's not a problem of result formatting for specific test. However it seems that it happens when the limits (coming from a sequence parameters) are set below 1.
What can cause this behavior ?
BTW, I'm using TS2012 and MySQL 5.2 (ODBC 5.2.5.0 ANSI Driver).
Attachments:
MySQLResults.PNG ‏50 KB
ResultList.PNG ‏21 KB

Hi zyl7,
The issue is most likely related to the way floating point values are stored in MySQL. To quote MySQL documentation, "Floating-point numbers sometimes cause confusion because they are approximate and not stored as exact values. A floating-point value as written in an SQL statement may not be the same as the value represented internally".
There are more details regarding this in the following link:
http://dev.mysql.com/doc/refman/5.1/en/problems-with-float.html.
I have tried to reproduce your scenario using TS 2012 sp1 and MySQL 5.2.5.0 ANSI ODBC Driver but I was unsuccessful even after trying a range of similar values. So the issue you faced is most likely dependent on the machine in use and might not be reproducible in a different set-up.
If the reason you raised this concern is because any comparisions on the floating point values stored in the database might be incorrect (because of the differences in the value passed from TestStand and the actual value stored), please follow the guidelines specified in the link above (especially the comments in the end of the page) to ensure your comparision operations always use a tolerence when calculating the results.
TestStand does float comparisions using a tolerence, so the pass/fail status generated by TestStand should be accurate.
Let me know if you have any concerns.

Problem in storing float value into database form C++ thru OCCI

Hi,
We are working on a project where numerical accuracy is crucial. As per our client required float data like 23.12345678 should be stoted and retrieved back accurately from C++ application.
We are using OCCI interface in C++ application. At the time of executing the query, we are moving the float value to host variable using setFloat() function. But oracle storing truncated or rounded value. Not exactly what we are proving.
Even we are not able store 22.22 also properly. In oracle column is defined as NUMERIC.
Its working fine, when we insert data from sql command promt by running a query. I guess we are missing some this in this process.
Please provide us any suggestions on this. It would be great if you can provide some sample code.
Regards,
Newbe

OTN has a C/C++ forum. Please delete this post and post your inquiry there.
Thank you.

Union two tables with diffrent count of fields with null and float value

Hello,
i want to union two tables, first one with 3 fields and second one with 4 fields (diffrent count of fields).
I can add null value at end of first select but it does not work with float values in second table. Value form second table is convert to integer.
For example:
select null v1 from sessions
union
select 0.05 v1 from sessions
result is set of null and 0 value.
As workaround i can type:
select null+0.0 v1 from sessions
union
select 0.05 v1 from sessions
or simple change select's order.
Is any better/proper way to do this? Can I somehow set float field type in first select?
Best regards,
Lukasz.
WIN XP, MAXDB 7.6.03

Hi Lukasz,
in a UNION statement the first statement defines the structure (number, names and types of fields) of the resultset.
Therefore you have to define a FLOAT field in the first SELECT statement in order to avoid conversion to VARCHAR.
Be aware that NULL and 0.0 are not the same thus NULL+0.0 does not equal NULL.
In fact NULL cannot equal to any number or character value at all.
BTW: you may want to use UNION ALL to avoid the search and removal of duplicates - looks like your datasets won't contain duplicates anyhow...
Regards,
Lars

How to extract an integer or a float value from a String of characters

Hi i have a problem getting to a float value within a string of characters..
for instance the string is
"numberItem xxxxxxxxx 700.0" (each x is a space..the forum wouldnt let me put normal spaces for some reason)
how do i store 700.0 in a float variable
remember the string is obtained from an inputfile
so far i got the program to store the inputfile data line by line in a String array..i tried tokenizing the string to get to the the float value but since i have mulitple spaces within my string, the token method only gets "numberItem" from the above String
This is all i have so far:
String c;
String Array[] =new String[g]; (i used a while loop to obtain g(the nubmer of lines in the file))
while((c=(cr.readLine()))!=null)
Array[coun]=c;
it would be reallllllllllllllllllllllllllllllllllllllly easy if there was a predefined method to extract numeric values from a string in java..
Edited by: badmash on Feb 18, 2009 5:50 PM
Edited by: badmash on Feb 18, 2009 5:50 PM
Edited by: badmash on Feb 18, 2009 5:55 PM

badmash wrote:
Hi i have a problem getting to a float value within a string of characters..
for instance the string is
"numberItem xxxxxxxxx 700.0" (each x is a space..the forum wouldnt let me put normal spaces for some reason)
with the space included
how do i store 700.0 in a float variable
remember the string is obtained from an inputfile
so far i got the program to store the inputfile data line by line in a String array..i tried tokenizing the string to get to the the float value but since i have mulitple spaces within my string, the token method only gets "numberItem" from the above StringHuh?
Not true.
Anyway why not use string split, split on spaces and grab the last element (which by the format you posted would be your 700.0)
Then there is the Float.parseFloat method.
It is easy.
And another thing why not use a List of Strings if you want to store each line? (And why did you post that code which doesn't really have anything to do with your problem?) Also in future please use the code formatting tags when posting code. Select the code you are posting in the message box and click the CODE button.

How do i convert a float value to a double value?

How do i convert a float value to a double value? HELP PLEASE!! im very stuck!! i gota float data type and i need to convert it to a double data type in order to use it in another operation.....
thank u so much!

safe dint realise ppl were so arrogant. thanks for the reply but less of the sarcasm!

How can i write the floats value in Unitronics vision230 plc using modbus Ethernet

How can i write the Float value in unitronics Vision230 PLC usinsg modbus ethernet (MB Ethernet Master Query.vi) I read and write the 32 bit register, for e.g i want to write the 23.45 value on 2nd add. of MF. And MF register is 32 bit register. I read and write the 32 bit register.
Narendra.
Solved!
Go to Solution.

Thanks Amit for your solution but i can not use the string to write the value because MB Ethernet master Query.vi only accepet the integer value its not take string values or any other i.e floats values etc.....otherwise i have no problem to write or read the 32 bit register values , only problem is that the MB Ethernet master Query.vi only accept the integer value there4 how can write the float value.
Narendra
Message Edited by Artemistech on 01-30-2009 11:06 PM

Function module to convert float value to data type 'dec'

Hi experts,
In a report i need to convert float value to the data type 'DEC'. How to convert it. Is there any function module for this conversion.
Thanks and Regards,
Vaibhav Tiwari.

Hi ..
We can do like this...
Data : V_float type F value '12345.67'.
Data: V_dec type P Decimals 2.
Write:/ V_float exponent 0. "This will display it like Type P
or
Write V_float to V_dec EXPONENT 0.
Write:/ V_dec.
reward if Helpful.
<b></b>

Insert float value into ms sql server

Hi.
How do I insert a float value into my ms sql db.
The Code:
select.setFloat( 4, theForm.getVaerdi() );ERROR:
"MakeClapetInsertAction.java": Error #: 300 : method setFloat(int, java.lang.Float) not found in interface java.sql.PreparedStatement at line 89, column 12

setFloat takes a float primitive, not a Float object.
select.setFloat( 4, theForm.getVaerdi().floatValue() );

Error in float value

Hi,
I am a newbie in JAVA. When I wrote the following code in java it gives me error:
public class FloatTest
public static void main(String[] args)
float f=3.14;
System.out.println(f);
It gives me an error saying possible lose of precision. Aren't float value capable of storing values with decimal point?
Thank you.

You're giving your float a double literal. If you want to use a float literal, you should append f to the end of the number.
By the way, there's usually very little reason to use float when a double will do as the precision of double is much greater and the cost of its use is very low if anything at all.

How to see decimal part of float value?

How to see only value of decimal part of float value?
For example, if I have 1.455, i need only to see .455 part.

Read the floating point value.
Convert that into a string.
Use the String's substring and indexOf method to find
the "." and then cut from there, to the end of the
string.<sarcasm>
Really? I'm sure pbrockway already said that but i must be mistaken.
</sarcasm>

Draw line with float values possible

Hi,
Using Canvas drawing is possible to draw line with float values.
graphics.drawLine(int,int,int,int);
graphics.drawLine(float,float,float,float);Thanks and regards,
Rakesh.

not possible
graphics.drawLine(float,float,float,float);...there's no such method in MIDP API: [click here for javadoc of Graphics class methods|http://java.sun.com/javame/reference/apis/jsr118/javax/microedition/lcdui/Graphics.html#drawLine(int,%20int,%20int,%20int)]

Rounding up of a float value

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