Convert Scientific Notation to Float

Hello
How can we convert Scientific notation to float.
e.g.
1.23E-3(string) as 0.00123(float)
Thanks
Solved!
Go to Solution.

Use Fract/EngStringToNumber. Or ScanFromString with format %f…
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

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Converting scientific notation string to number?

This is raising an error:
> ToNumber (u201C2.75E-05u201D)
How do you convert scientific notation strings to numbers?
This is coming from XML. I can probably have the XML written so that it's not scientific notation.
Tim

Here's a not-so-pretty way:
Local StringVar Array x;
Local StringVar mantissa;
Local StringVar exponent := "0";
// Split into mantissa and exponent parts.
x:= Split("24.2233E+2", "e", 2, 1);
mantissa := x[1];
If (UBound(x) = 2)
Then
    exponent := x[2];
// CDbl cannot interpret leading positive sign, so removie
If Left(mantissa, 1) = "+"
Then
    mantissa := Right(mantissa, Length(mantissa) - 1);
If Left(exponent, 1) = "+"
Then
    exponent := Right(exponent, Length(exponent) - 1);
// Compute number
CDbl(mantissa) * 10 ^ CDbl(exponent);
Sincerely,
Ted Ueda

Convert scientific notation value into normal number

hi,
I am importing excel(.csv) file into Oracle database, a value in excel file 8.70773E+11 is displaying in scientific notation format, i want to store it like 870772521002.

i have already run this query, it gave me 871000000000.0000000000 this result.
Table Structure,
SQL> desc cdr;
Name Null? Type
INVOICENO VARCHAR2(50)
OCEANREGION NUMBER
CALLDATE DATE
CALLTIME VARCHAR2(10)
ORIGINATORNO VARCHAR2(50)
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DESTNO VARCHAR2(50)
VOLUME FLOAT(50)
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Convert Scientific Notation to Numeric (ABAP)

I am currently consuming a WebService from XIgnite, that is returning a 7.5863900E-01 and I need to update the TCURR (Exchange Rate table) with .758639.
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try this:
DATA: W_EXPO TYPE QPMK-SOLLWERT,
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Convert from scientific notation

Can someone help me with this? I cannot get this working even using some of the tips I found on this site and elsewhere:
Round this and format this with 2 decimals: '-2.58069E-11'.
Now I realize this would end up -2.58, but it is giving me an error instead.
Error converting data type varchar to numeric.
SELECT CAST('2.58069E-11' AS NUMERIC(24,2))
SELECT CAST('2.58069E-11' AS NUMERIC(24,12))
I tried 12 just to make sure that there was enough room for the decimals
If I use ISNUMERIC, it returns 1, so SQL Server considers it a number (at least with that function)
The next example works, but it is not what I want.
SELECT CAST('2.58069E-11' AS REAL) just returns the same thing with the 'E', (as REAL, of course)
In these example I haven't done the rounding yet.
I get all kinds of negative and positive numbers with different decimal lengths, but the scientific notation is particularly tricky.

Before I put this to bed, I have found out both the above solutions are wrong when using a regular decimal:
Try this:
SELECT CAST(CAST('-1131658.27' AS REAL) AS NUMERIC(24,2))
And this:
SELECT CAST(CONVERT(REAL, -1131658.27) as DECIMAL(24,12))
They both yield -1131658.25, and -1131658.250000000000, respectively.
This is probably some floating point error, but how do I take care of it?

Numeric Values Converted to Scientific Notation

My BPEL process converts numeric values to scientific notation (eg. 12345678 is converted to 1.2345678E7). This then causes problems when I try to perform any mathematical operations on these values during an XSL transformation (output - NaN)
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On further investigation, this occurs for values loaded from Oracle FLOAT database type.
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Float Data Value and Scientific Notation

Hello All,
SQL Server converts some of the float value into scientific notation for example 0.00001 will be stored as
1E-05.
Is there any simple method\formula\threshold to precisely tell when some particular value will be converted to scientific notation?
Also I think oracle store same value above i.e. 0.00001 as it is with float data type but not the case with SQL Server. Any reason for the same?
Thanks in Advance.
-Malkesh

Thanks Erland.
I got your point that internal storage as you mentioned will be 53 bit and 11 bit exponent of 2. However my question remains the same that is there any method\threshold from which we can say that after this numeric value stored data will be represented in
scientific notation or any rule of thumb? For example
drop
table #t
CREATE
TABLE #T (T1
FLOAT)
INSERT
INTO #T (T1)
SELECT 0.000001
INSERT
INTO #T (T1)
SELECT 0.00001
INSERT
INTO #T (T1)
SELECT 0.0001
INSERT
INTO #T (T1)
SELECT 0.001
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INTO #T (T1)
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INTO #T (T1)
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SELECT 1.0
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SELECT 1.01
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SELECT 1.000001
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INTO #T (T1)
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INTO #T (T1)
SELECT 1.00000001
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INTO #T (T1)
SELECT 1.000000001
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INTO #T (T1)
SELECT 1.0000000001
INSERT
INTO #T (T1)
SELECT 1.00000000001
INSERT
INTO #T (T1)
SELECT 1.000000000001
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INTO #T (T1)
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SELECT 10.1
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INTO #T (T1)
SELECT 100.1
INSERT
INTO #T (T1)
SELECT 1000.1
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INTO #T (T1)
SELECT 10000.1
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SELECT 100000.1
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INTO #T (T1)
SELECT 1000000.1
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INTO #T (T1)
SELECT 10000000.1
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INTO #T (T1)
SELECT 100000000.1
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SELECT 10000000000.1
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Thanks Again.

Display Large Float w/o Scientific Notation

I have a series of dollar amounts (from an SQL cursor) that I am summing up using a java.lang.Float. The values total correctly, but when I display the value it is displayed using Scientific Notation (4.19150150185925 E12). I need to write my total value to a file that will be exported to another application (mainframe). Therefore, the value when written to the output file must be 4191501501859.25. How do I get the value in that form, instead of the scientific notation form?
Should I be using a different type to sum my values into? The max value my total can reach is 99999999999999999.999
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No, I meant precisely what I said. If BigDecimal
does indeed have a valueOf method that accepts a
string, please notify Sun, as they will certainly
have to update the documentation -- didn't YOU
read the documentation link that you yourself
sent me?
No, of course not, I only checked that it indeed does not have any method that takes a String parameter and that the method to "add" numbers is really called "add".
By the way, a constructor that takes a String parameter does pretty much the same thing as a method that takes a String parameter and returns a new instance of the class. There is no significant difference between Float's valueOf(String) and the Float(String) constructor as far the user of the API is concerned.
(Looking up the source just for fun I see that Float.valueOf(String) and Float(String) do completely different things, and Float(String) creates a temporary extra Float object. The comment above says: "REMIND: this is inefficient". Interesting.)
Probably not, you were apparently too busy taking
a 'tude.No doubt! :-)

Converting from a double to scientific notation

does anyone know how I can convert a double value to scientific notation?

java.text.DecimalFormat can do that.

Need to "turn off" (disable) scientific notation

How can I prevent real (floating point - whatever) numbers from displaying (within a table) in scientific notation. Appears to be for numbers > 9999999.. The number 27000000 is displayed as 2.7E7
Thanks

Drop the Number Converter on the component and specify the number of pre and post decimal digits.
See http://developers.sun.com/jscreator/learning/tutorials/2/converters.html

Scientific notation SSIS

Hi,
the situation is that I receive a column on excel, with format nvarchar, for example "8.0442 E +18" and I wanted to get "8044200073000360000" how do this transformation in ssis. From excel to sql server, using -> SSIS.
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gives error.
David

Its a float data and represents approximate numeric. As such I dont think you will able to get full
precision as you like. Try using
datatype like Decimal (38,2) in
SQLServer
Also try this
http://www.sentientbeings.com/2012/03/how-to-stop-ssis-from-converting-text-to-scientific-notation-when-importing-from-excel/
Please Mark This As Answer if it helps to solve the issue
Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Scientific Notation to Integer?

I have a string like 1.780657E7 that I need to convert to an integer. I think that might be too big for Integer, so maybe BigInt would be better.
Anyway, I can't figure out how to do this! I guess I could write my own method, but I'm sure it's already out there somewhere. I'm pretty new to Java.
Thanks a lot,
- Andrew.

A small exegesis of prometheuzz's perfectly accurate, if slightly terse solution.
Scientific notation is assumed to be floating-point. You must therefore parse a scientific-notation string using Float.parseFloat() or Double.parseDouble() and "integerise" the result if an integer is what you want.
The last line is to show that your sample number is easy to fit in an int variable.

Key Figures being displayed in Scientific Notation

Hi GURU's,
I have created a Analysis Process Designer (MultiCube to Flat File) and everything seems to be ok in that but the output for 2 of the key figures are in scientific notation (i.e. 10 decimal places) and this needs to be fixed up immediately.
The value of the Key Figure is displayed as 1.72E04 instead of 1,7231810000000001E04
How do I go about solving this issue.
Thanks & Regards,
Praveen Battula

I think in floating point math adding 1 to 9999999999999899999999 is going to be a meaningless operation as by the time one converts 1 to a floating point of the scale & precision needed to represent 9999999999999899999999, it's going to lose any significance (ie: it's going to basically be represented as zero).
You'll need to do a search on how to deal with numbers of very high precision & scale. I don't have any code to hand. Have you done any of your own investigation on how to deal with this?
Adam

Why Number displayed in scientific notation

I have tried to add two numbers and got a result displayed in scientific notation.
Then I have used the 'decimalformat()' function and result is wrong.
How can display the correct result. Please help
Please see the code I have used
<cfset N1=1>
<cfset N2=9999999999999899999999>
<cfset RESULT = N1+ N2>
<cfoutput>
#RESULT#
<br />
#decimalformat(RESULT)#
</cfoutput>
result :
1E+022
92,233,720,368,547,760.00
Thanks in advance

I think in floating point math adding 1 to 9999999999999899999999 is going to be a meaningless operation as by the time one converts 1 to a floating point of the scale & precision needed to represent 9999999999999899999999, it's going to lose any significance (ie: it's going to basically be represented as zero).
You'll need to do a search on how to deal with numbers of very high precision & scale. I don't have any code to hand. Have you done any of your own investigation on how to deal with this?
Adam

Select Query resulting in Scientific Notation

Hello all,
I am running a Select query through a batch file that extracts data from an Oracle database. Several of the fields that I am extracting from contain numbers that are up to 38 digits long. When I extract the data, it converts the numbers into scientific notation and it is important for me to have the entire field. Is there something I can change to my query that will pull the data in its entire form? This is what I'm running now:
select * FROM ML.APPT where APPTDATE >= to_date('01/1/2010','mm/dd/yyyy'
I apologize in advance if this has been answered already.
Thanks!

>
When the extractor finishes, it returns the data into a flat file.
don't quite understand the TO_CHAR function. Does this function mean I need to say something like this: select "TO_CHAR('column name', 99999999999999999999999999999999999999" FROM ML.APPT where APPTDATE >= to_date('01/1/2010','mm/dd/yyyy')
>
Yes- if the tool you use to extract the data (your 'extractor') is converting the numeric data to a string then it is responsible for creating the string in the proper format. If the number is an integer that can have as many digits as you have '9's in your sample format string then that is what you need to do.
Here is how sql*plus (Oracle's tool) will display the data using default settings
SQL> select 12345678901234567890123456789012345678 no_format,
2 to_char(12345678901234567890123456789012345678, '99999999999999999999999999
999999999999') with_format
3 from dual;
NO_FORMAT WITH_FORMAT
1.2346E+37 12345678901234567890123456789012345678
SQL>
----- TOAD will display something similiar but the default uses more decimal digits in the scientific notation data
NO_FORMAT,WITH_FORMAT
1.23456789012346E37, 12345678901234567890123456789012345678You can either format the numeric data in the query using TO_CHAR or the 'extractor' can do it when it converts the data to a string.

Convert Scientific Notation to Float

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