# izmax1.f(3) [debian man page]

```izmax1.f(3)							      LAPACK							       izmax1.f(3)

NAME
izmax1.f -

SYNOPSIS
Functions/Subroutines
INTEGER function izmax1 (N, CX, INCX)
IZMAX1

Function/Subroutine Documentation
INTEGER function izmax1 (integerN, complex*16, dimension( * )CX, integerINCX)
IZMAX1

Purpose:

IZMAX1 finds the index of the element whose real part has maximum
absolute value.

Based on IZAMAX from Level 1 BLAS.
The change is to use the 'genuine' absolute value.

Parameters:
N

N is INTEGER
The number of elements in the vector CX.

CX

CX is COMPLEX*16 array, dimension (N)
The vector whose elements will be summed.

INCX

INCX is INTEGER
The spacing between successive values of CX.  INCX >= 1.

Author:
Univ. of Tennessee

Univ. of California Berkeley

NAG Ltd.

Date:
November 2011

Contributors:
Nick Higham for use with ZLACON.

Definition at line 82 of file izmax1.f.

Author
Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.1							  Sun May 26 2013						       izmax1.f(3)```

## Check Out this Related Man Page

```zlar2v.f(3)							      LAPACK							       zlar2v.f(3)

NAME
zlar2v.f -

SYNOPSIS
Functions/Subroutines
subroutine zlar2v (N, X, Y, Z, INCX, C, S, INCC)
ZLAR2V

Function/Subroutine Documentation
subroutine zlar2v (integerN, complex*16, dimension( * )X, complex*16, dimension( * )Y, complex*16, dimension( * )Z, integerINCX, double
precision, dimension( * )C, complex*16, dimension( * )S, integerINCC)
ZLAR2V

Purpose:

ZLAR2V applies a vector of complex plane rotations with real cosines
from both sides to a sequence of 2-by-2 complex Hermitian matrices,
defined by the elements of the vectors x, y and z. For i = 1,2,...,n

(       x(i)  z(i) ) :=
( conjg(z(i)) y(i) )

(  c(i) conjg(s(i)) ) (       x(i)  z(i) ) ( c(i) -conjg(s(i)) )
( -s(i)       c(i)  ) ( conjg(z(i)) y(i) ) ( s(i)	  c(i)	)

Parameters:
N

N is INTEGER
The number of plane rotations to be applied.

X

X is COMPLEX*16 array, dimension (1+(N-1)*INCX)
The vector x; the elements of x are assumed to be real.

Y

Y is COMPLEX*16 array, dimension (1+(N-1)*INCX)
The vector y; the elements of y are assumed to be real.

Z

Z is COMPLEX*16 array, dimension (1+(N-1)*INCX)
The vector z.

INCX

INCX is INTEGER
The increment between elements of X, Y and Z. INCX > 0.

C

C is DOUBLE PRECISION array, dimension (1+(N-1)*INCC)
The cosines of the plane rotations.

S

S is COMPLEX*16 array, dimension (1+(N-1)*INCC)
The sines of the plane rotations.

INCC

INCC is INTEGER
The increment between elements of C and S. INCC > 0.

Author:
Univ. of Tennessee

Univ. of California Berkeley

NAG Ltd.

Date:
November 2011

Definition at line 112 of file zlar2v.f.

Author
Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.1							  Sun May 26 2013						       zlar2v.f(3)```
Man Page

## Adding the individual columns of a matrix.

I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this: 1 2 3 4 5 6 7 8 9 3 4 5 I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are: ...

## awk or sed - Convert 2 lines to 1 line

Hi, Just trying to get to grips with sed and awk for some reporting for work and I need some assistance: I have a file that lists policy names on the first line and then on the second line whether the policy is active or not. Policy Name: Policy1 Active: yes Policy...

## How can I do this in VI editor?

version info : vi availabe with RHEL 5.4 I have a text file with 10,000 lines. I want to copy lines from 5000th line to 7000th and redirect to a file. Any idea how I can do this? Note: The above scenario is just an example. In my actual requirement, the file has 14 million lines and I want...

## Is UNIX an open source OS ?

Hi everyone, I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX. Ok onto business, my questions are-: Was/Is UNIX ever an open source operating system ? If UNIX was...

## Introduction

Hello, I couldn't find an actual introduction thread, so I decided to just put this here. I go by d0wngrade online. I have been programming in multiple languages for about 15+ years. I started with standard web design languages like HTML and CSS, but I then advanced from design to development...

## Detecting unused variables...

Hi guys... The first active code line in AudioScope.sh is set -u . This causes a complete exit if a variable is used/found but has not been allocated at the start of the program. However, apart from writing code to do the task, is there a switch to to check which variables have been...

## One instance of comparing grep and awk

Hi. In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk. Here is a demo script that compares the awk and grep approaches for this single problem: #!/usr/bin/env bash # @(#) s2 Demonstrate group...

## Find columns in a file based on header and print to new file

Hello, I have to fish out some specific columns from a file based on the header value. I have the list of columns I need in a different file. I thought I could read in the list of headers I need, # file with header names of required columns in required order headers_file=\$2 # read contents...

## Installing Dash Shell on OS X Lion

For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this: If you don't have gcc on your system: 0. Download and install the Command Line Tools for Xcode package from Sign In - Apple * 1. Download the dash...

## Weird 'find' results

Hello and thanks in advance for any help anyone can offer me I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by...

## How to copy a column of multiple files and paste into new excel file (next to column)?

I have data of an excel files as given below, file1 org1_1 1 1 2.5 100 org1_2 1 2 5.5 98 org1_3 1 3 7.2 88 file2 org2_1 1 1 2.5 100 org2_2 1 2 5.5 56 org2_3 1 3 7.2 70 I have multiple excel files as above shown. I have to copy column 1, column 4 and paste into a new excel file as...

## New UNIX and Linux History Sections

Dear All, Taking a break from Vue.js coding for the site, SEO and YT videos; and hopefully addressing some well deserved criticism from some here that I have been too focused on the visual aspects of the forums versus the substance and the community.... While the "current generation...

## My first PERL incarnation... Audio Oscillograph

Hi all... Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default. Many tricky terminal escape codes are not catered for so I had to create workarounds. One thing I searched for was this: Passing perl variable to shell command AND, @Neo this was...