Copy last few lines of a file, perform math operation and iterate further
Hi,
I am trying to generate a data of following order:
where the 1st column is a constant with value 4. Values in columns 2,3,4,5 are incremented by 1 based on the data of previously available 8 rows.
I have tried:
But the output is -8.000. I am trying to use the previous 8 lines for an increment operation but it sees this as a number to output.
Any suggestions?
Hi all,
I would appreciate if anyone knows how to perform adding to date.
As for normal date, i can easily plus with any number.
But when it comes to month end say for example 28 Jun, i need to perform a plus with number 3, it will not return 1 Jul.
Thanks in advance for your help. (4 Replies)
Hi,
i need to copy contents from source to destination with a few conditions, Please helpme out.
Sample input file
$>cat testfile.txt
/a/b/c/d | /e/f/g/d (d can be either a file or directory)
my conditions are:
check if destination is valid and if its a file or directory
if its a... (5 Replies)
I am trying to enter a third column in this file, but the third column should that I call "Math" perform a some math calculations based on the value found in column #2.
Here is the input file:
Here is the desired output:
Output
GERk0203078$ Levir Math
Cotete_1... (5 Replies)
Hi, I need your help. I've got two files and i need to add 2nd line after occurrence of "Group No X" from data2.txt to 3rd line (after occurrence of "Group No X") from data1.txt. There is the same number of "Groups" in both files and the numbers of groups have the same pattern.
data1.txt
Group... (2 Replies)
Sorry, about this thread - I solved my own problem! Thanks for taking a look.
edit by bakunin: no problem, but it would have been a nice touch to actually tell us what the solution was. This would have been slightlich more educating than just knowing that you found it.
I changed your title to... (0 Replies)
I am getting two result: string and int in c++ code. That I want to store into database. The request which generates result is very frequent. So each time performing db operation to store the result is costly for me.
So how this can be achived using dbms_sql? I dont have any experience and how... (1 Reply)
Hi All,
I am using an awk script as below:
awk -F'|' 'BEGIN{OFS="|";} { if ($1==$3 && $3==$7 && $7==$13 && $2==$6 && $6==$11 && $15-$14+1==$11) print $0"|""TRUE"; else print $0"|""FALSE"; }' tempfile.txt
In above script, all conditions are being checked except the one which is... (4 Replies)
Hi
main object is categorize the difference of data-values (TLUFT02B - TLUFT12B).
herefor i read out data-files which are named
acording to the timeformat yyyymmddhhmm.
WR030B 266.48 Grad 0
WR050B 271.46 Grad 0
WR120B 268.11 Grad 0
WV030B 2.51 m/s ... (6 Replies)
Have three files. Any other approach with regards to file concatenation or splitting, etc is appreciated
If column55(billngtype) of file1 contains YMNC or YPBC then pick the value of column13(documentnumber). Now find this documentnumber in column1(Billdoc) of file2 and grep the corresponding... (4 Replies)
Discussion started by: as7951
4 Replies
LEARN ABOUT OSX
rational_funcs
math::rationalfunctions(n) Math math::rationalfunctions(n)
__________________________________________________________________________________________________________________________________________________NAME
math::rationalfunctions - Polynomial functions
SYNOPSIS
package require Tcl ?8.4?
package require math::rationalfunctions ?1.0.1?
::math::rationalfunctions::rationalFunction num den
::math::rationalfunctions::ratioCmd num den
::math::rationalfunctions::evalRatio rational x
::math::rationalfunctions::addRatio ratio1 ratio2
::math::rationalfunctions::subRatio ratio1 ratio2
::math::rationalfunctions::multRatio ratio1 ratio2
::math::rationalfunctions::divRatio ratio1 ratio2
::math::rationalfunctions::derivPolyn ratio
::math::rationalfunctions::coeffsNumerator ratio
::math::rationalfunctions::coeffsDenominator ratio
_________________________________________________________________DESCRIPTION
This package deals with rational functions of one variable:
o the basic arithmetic operations are extended to rational functions
o computing the derivatives of these functions
o evaluation through a general procedure or via specific procedures)
PROCEDURES
The package defines the following public procedures:
::math::rationalfunctions::rationalFunction num den
Return an (encoded) list that defines the rational function. A rational function
1 + x^3
f(x) = ------------
1 + 2x + x^2
can be defined via:
set f [::math::rationalfunctions::rationalFunction [list 1 0 0 1] [list 1 2 1]]
list num
Coefficients of the numerator of the rational function (in ascending order)
list den
Coefficients of the denominator of the rational function (in ascending order)
::math::rationalfunctions::ratioCmd num den
Create a new procedure that evaluates the rational function. The name of the function is automatically generated. Useful if you need
to evaluate the function many times, as the procedure consists of a single [expr] command.
list num
Coefficients of the numerator of the rational function (in ascending order)
list den
Coefficients of the denominator of the rational function (in ascending order)
::math::rationalfunctions::evalRatio rational x
Evaluate the rational function at x.
list rational
The rational function's definition (as returned by the rationalFunction command). order)
float x
The coordinate at which to evaluate the function
::math::rationalfunctions::addRatio ratio1 ratio2
Return a new rational function which is the sum of the two others.
list ratio1
The first rational function operand
list ratio2
The second rational function operand
::math::rationalfunctions::subRatio ratio1 ratio2
Return a new rational function which is the difference of the two others.
list ratio1
The first rational function operand
list ratio2
The second rational function operand
::math::rationalfunctions::multRatio ratio1 ratio2
Return a new rational function which is the product of the two others. If one of the arguments is a scalar value, the other ratio-
nal function is simply scaled.
list ratio1
The first rational function operand or a scalar
list ratio2
The second rational function operand or a scalar
::math::rationalfunctions::divRatio ratio1 ratio2
Divide the first rational function by the second rational function and return the result. The remainder is dropped
list ratio1
The first rational function operand
list ratio2
The second rational function operand
::math::rationalfunctions::derivPolyn ratio
Differentiate the rational function and return the result.
list ratio
The rational function to be differentiated
::math::rationalfunctions::coeffsNumerator ratio
Return the coefficients of the numerator of the rational function.
list ratio
The rational function to be examined
::math::rationalfunctions::coeffsDenominator ratio
Return the coefficients of the denominator of the rational function.
list ratio
The rational function to be examined
REMARKS ON THE IMPLEMENTATION
The implementation of the rational functions relies on the math::polynomials package. For further remarks see the documentation on that
package.
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category math ::
rationalfunctions of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhance-
ments you may have for either package and/or documentation.
KEYWORDS
math, rational functions
CATEGORY
Mathematics
COPYRIGHT
Copyright (c) 2005 Arjen Markus <arjenmarkus@users.sourceforge.net>
math 1.0.1 math::rationalfunctions(n)