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 Procedure Abstract Required_Reading Keywords Brief_I/O Detailed_Input Detailed_Output Parameters Exceptions Files Particulars Examples Restrictions Literature_References Author_and_Institution Version Index_Entries

#### Procedure

```   sumad_c ( Sum of a double precision array )

SpiceDouble sumad_c ( ConstSpiceDouble   * array,
SpiceInt             n     )

```

#### Abstract

```   Return the sum of the elements of a double precision array.
```

```   None.
```

#### Keywords

```   ARRAY
MATH
UTILITY

```

#### Brief_I/O

```   VARIABLE  I/O  DESCRIPTION
--------  ---  --------------------------------------------------
array      I   Input array.
n          I   Number of elements in `array'.

The function returns the sum of the elements of `array'.
```

#### Detailed_Input

```   array       is the input double precision array.

n           is the number of elements in the array.
```

#### Detailed_Output

```   The function returns the sum of the elements of the input array.
That is,

sumad_c( array, n ) = array[0] + array[1] + ... + array[n-1]

If `n' is zero or negative, sumad_c is zero.
```

#### Parameters

```   None.
```

#### Exceptions

```   Error free.
```

#### Files

```   None.
```

#### Particulars

```   The value of the function is initially set to zero. The elements
of the array are then added. If the number of elements is zero or
```

#### Examples

```   Let `array' contain the following elements.

array[0] = 12.
array[1] =  1.
array[2] =  4.
array[3] = 75.
array[4] = 18.

Then

sumad_c ( array,   -3 )       =   0.
sumad_c ( array,    0 )       =   0.
sumad_c ( array,    1 )       =  12.
sumad_c ( array,    2 )       =  13.
sumad_c ( array,    5 )       = 110.
sumad_c ( array+2,  3 )       =  97.
```

#### Restrictions

```   1)  sumad_c does not check for overflow.
```

#### Literature_References

```   None.
```

#### Author_and_Institution

```   N.J. Bachman        (JPL)
J. Diaz del Rio     (ODC Space)
I.M. Underwood      (JPL)
```

#### Version

```   -CSPICE Version 1.0.1, 09-APR-2021 (JDR)

Edited the header to comply with NAIF standard.

-CSPICE Version 1.0.0, 24-MAR-1999 (IMU) (NJB)
```

#### Index_Entries

```   sum of a d.p. array
```
`Fri Dec 31 18:41:13 2021`