tabsum
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## tabsum

tabsum — Adding values in a range of a table.

## Description

Sums the values in an f-table in a consecutive range.

## Syntax

    kr tabsum ifn[[, kmin] [, kmax]]

## Initialization

ifn -- table number

## Performance

kr -- input signal to write.

kmin, kmax -- range of the table to sum. If omitted or zero they default to 0 to length of the table.

## Examples

Here is an example of the tabsum opcode. It uses the file tabsum.csd.

Example 1088. Example of the tabsum opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

    <CsoundSynthesizer>
    <CsOptions>
    ; Select audio/midi flags here according to platform
    -odac    ;;;realtime audio out
    ; For Non-realtime ouput leave only the line below:
    ; -o tab.wav -W ;;; for file output any platform
    </CsOptions>
    <CsInstruments>

    sr = 44100
    ksmps = 2205
    nchnls = 1
    0dbfs  = 1

    instr 1       ;;; Give a value to the increment
      kmax = 256
      knorm tabsum 1, 0, kmax
      gkinc = knorm/10
    endin

    instr 2
      kmax = 256
      kx = rnd(kmax)
      krnd  tabsum 1, 0, kx
      knorm tabsum 1, 0, kmax
      kvar  = krnd / knorm          ;;; now n [0,1] range
      asig  oscil  kvar, p4, 2
            out    asig
    ;;; Make randomness give 1 more often
      kc    tab     0, 1
            tablew  kc+gkinc, 0, 1
    endin
    </CsInstruments>

    <CsScore>
    f1 0 256 21 1
    f2 0 4096 10 1
    i1 0 0.1
    i2 0.1 3 440
    e

    </CsScore>

    </CsoundSynthesizer>

## See Also

Vectorial opcodes

## Credits

Author: John ffitch
Codemist Ltd
2009

New in version 5.11

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