# scsum1.f man page

scsum1.f —

## Synopsis

### Functions/Subroutines

REAL functionscsum1(N, CX, INCX)SCSUM1forms the 1-norm of the complex vector using the true absolute value.

## Function/Subroutine Documentation

### REAL function scsum1 (integerN, complex, dimension( * )CX, integerINCX)

**SCSUM1** forms the 1-norm of the complex vector using the true absolute value.

**Purpose:**

```
SCSUM1 takes the sum of the absolute values of a complex
vector and returns a single precision result.
Based on SCASUM from the 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 array, dimension (N)
The vector whose elements will be summed.
```

*INCX*

```
INCX is INTEGER
The spacing between successive values of CX. INCX > 0.
```

**Author:**

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

**Date:**

September 2012

**Contributors:**

Nick Higham for use with CLACON.

Definition at line 82 of file scsum1.f.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

scsum1(3) is an alias of scsum1.f(3).

Sat Nov 16 2013 Version 3.4.2 LAPACK