tela(1)

NAME

tela - TEnsor LAnguage

SYNOPSIS

tela [ -v | --verbose ] [ -b  |  --batch  ]       [  -f
--fast  ] [ -s | --silent ]      [ -p | --profile ] [ -O[level] ]
[ -e tela-code | --execute tela-code ] [ files ]
tela -V | --version
tela -? | -h | --help

DESCRIPTION

Start tela; first execute tela-code, then each of files in

turn (if any), finally enter interactive mode.

Tela is a numerical computing environment mainly targeted

for numerical simulation pre- and post-processing work. The lan

guage supports arbitrary rank arrays (hence the name, TEnsor LAn

guage), and has powerful programming capabilities including F90

style vector notation. Two- and three- dimensional graphics is

implemented by calling PlotMTV. For 2D graphics, the SPPC inter

face is also available.

The on-line help is intended as the primary source of doc

umentation. The command help topic gives help on topic, where

topic can be individual reserved words, function names, etc.

OPTIONS

tela accepts the following options:

-b, --batch

Quit after executing tela-code, or files.

-e, --execute tela-code

Execute Tela expressions tela-code.

-f, --fast

Do not source any initialization files; see the

section on INITIALIZATION.

-O[level]

Select optimization level. -O0, the default,

means no optimization. -O, and -O1 enable flat-code optimiza

tion.

-h, -?, --help

Print help message and exit.

-s, --silent

Suppress startup message, MIPS count, and FLOPS

count.

-p, --profile

Collect per-function profiling data (total time,

time per call, MFLOPS) and output it at the end of the run.

-v, --verbose

Set verbose execution mode: list tree-codes and

flat-codes.

-V, --version

Print version number and exit.

INITIALIZATION

Unless suppressed with the -f or --fast options tela tries

to source the file telainit.t (or just telainit if that exists).

The sourced files are searched in a directory path, which is ob

tained as follows:

1. A compiled-in default, typically "/usr/lo

cal/lib/tela/t:/usr/local/lib/tela/ct:/usr/local/lib/tela:."

2. If set, the environment variable TELAPATH_SYSTEM over

rides the compiled-in default, or appends to it if it starts with

a colon.

3. Similarly, if set, the environment variable TELAPATH

overrides the previous, or appends to them if it starts with a

colon.

The combined effect of the compiled-in default,

TELAPATH_SYSTEM

telapath() in Tela. The standard telainit.t tries to source $HOME/.telainit.t.

ENVIRONMENT

Besides TELAPATH and TELAPATH_SYSTEM, tela recognizes the

following environment variables: TELA_PLOTMTV specifies the

PlotMTV program to use (default: plotmtv). The function whos()

displays variables and uses the PAGER (default: more) and

TELA_SORTER

SEE ALSO

telakka Tela extension utility
ctpp Tela preprocessor
plotmtv Standard associated graphics package
sppc Alternative graphics package
m2t Matlab to Tela translator

HISTORY

Tela by Pekka Janhunen; man page by Ch. L. Spiel,

2000-3-9.

3rd Berkeley Distribution Tela-1.31

TELA(1)