Back to standard library sections.
Standard library functions or symbols:

A

about

abs

accumulate

accum_dimlist

acos

acosh

add_member

add_next_file

add_record

add_variable

add_y_home

adjust_ireg

after

after_error

aim3

allof

alpha_primitives

am_subroutine

animate

anyof

any_in

apply_funcs

area

array

arrowl

arroww

asin

asinh

aspect

as_chars

atan

atanh

at_pdb_close

at_pdb_open

autoload

avg

B

backup

baget

base60

basename

baset

basfix

batch

bessi

bessi0

bessi1

bessj

bessj0

bessj1

bessk

bessk0

bessk1

bessy

bessy0

bessy1

best_rays

beta

betai

bico

bi_dir

bookmark

bowtie

boxcar

brighten

bstoer

bs_integrate

build_dimlist

butter

button_build

button_plot

button_test

bytscl

B_nu

B_nu_bar

C

cage3

calendar

call

catch

cauer

cd

ceil

cheby1

cheby2

cheby_conv

cheby_deriv

cheby_eval

cheby_fit

cheby_integ

cheby_poly

cheby_trunc

clear3

close

close102

close102_default

closed

closure

collect

color

color_bar

conj

contour

conv3_rays

convol

convoln

copyb

copyright

cos

cosh

cray_primitives

crc_on

create

createb

csch

cs_adjust

current_include

current_mouse

current_window

c_adjust

D

data_align

datestamp

dawson

dbauto

dbcont

dbdis

dbexit

dbinfo

dbret

dbskip

dbup

dec_primitives

default_gate

default_integrate

default_ocompute

demo1

demo2

demo3

demo4

demo5

digit2

digitize

dimsof

dirname

dirt_rays

disassemble

dn_

drat_akap

drat_amult

drat_backlight

drat_channel

drat_compress

drat_ekap

drat_emult

drat_gate

drat_gav

drat_gb

drat_glist

drat_integrate

drat_ireg

drat_ireg_adj

drat_isymz

drat_khold

drat_lhold

drat_linear

drat_nomilne

drat_oadjust

drat_ocompute

drat_omult

drat_quiet

drat_rt

drat_start

drat_static

drat_stop

drat_symmetry

drat_zt

draw3

dump_clog

dump_palette

E

ecolor

edges

edit_times

ellip2_e

ellip2_k

elliptic

EllipticE

EllipticK

ellip_e

ellip_k

ell_am

ell_e

ell_f

eps

epsi

eq_nocopy

erf

erfc

erfc_nr

error

errs2caller

evolve

ewidth

exit

exp

expm1

F

f2z

factorize

fd12

fd32

fd52

fdi12

fdi32

fdi52

fdim12

fdm12

fermi

fermii

fflush

fft

fft_good

fft_inplace

fft_setup

filepath

filter

fil_analyze

fil_bessel

fil_butter

fil_cauer

fil_cheby1

fil_cheby2

fil_delay

fil_make

fil_poly

fil_response

find_boundary

find_in_path

fitlsq

fitpol

fitrat

fits

fitsAddComment

fitsAddHistory

fitsFixHeader

fitsHeader

FitsHeader

fitsMakeOldHeader

fitsObsolete

fitsOldHeaderKeywords

fitsOldHeaderMembers

fitsRead

fitsRescale

fitsWrite

fits_best_scale

fits_bitpix_info

fits_bitpix_of

fits_bitpix_type

fits_check_bitpix

fits_check_file

fits_close

fits_coordinate

fits_copy_data

fits_copy_hdu

fits_copy_header

fits_create

fits_current_hdu

fits_date

fits_delete

fits_eof

fits_filename

fits_get

fits_get_bitpix

fits_get_bscale

fits_get_bzero

fits_get_cards

fits_get_comment

fits_get_coordinate

fits_get_data_size

fits_get_dims

fits_get_gcount

fits_get_groups

fits_get_history

fits_get_keywords

fits_get_list

fits_get_naxis

fits_get_pcount

fits_get_special

fits_get_xtension

fits_goto_hdu

fits_id

fits_ids

fits_ignore_short_file

fits_index_of_table_field

fits_info

fits_init

fits_is_integer_scalar

fits_is_real_scalar

fits_is_string_scalar

fits_key

fits_list

fits_map

fits_match

fits_move

fits_move_card

fits_new_bintable

fits_new_hdu

fits_new_image

fits_next_hdu

fits_nth

fits_open

fits_pack_bintable

fits_pad_hdu

fits_parse

fits_read

fits_read_array

fits_read_bintable

fits_read_bintable_as_hashtable

fits_read_header

fits_rehash

fits_rewind

fits_set

fits_set_dims

fits_strcmp

fits_tolower

fits_toupper

fits_trimright

fits_write

fits_write_array

fits_write_bintable

fits_write_header

floor

fma

focused_window

font

form_mesh

form_rays

funcdef

funcset

f_inverse

G

gaccess

gammp

gammq

gaussian_gate

gaussm

gauss_gate

gauss_int

gcd

get3_centroid

get3_light

get3_normal

get3_xy

getc3

getdate

gettime

getv3

get_addrs

get_argv

get_cwd

get_env

get_home

get_includes

get_international_date

get_member

get_ncycs

get_path

get_pkgnames

get_primitives

get_ray_path

get_s0

get_std_limits

get_style

get_times

get_vars

get_ylm

GIST_FORMAT

gnomon

gridxy

grow

grtest

guess_symmetry

H

has_mouse

has_records

has_write_permissions

hcp

hcpoff

hcpon

hcps

hcp_file

hcp_finish

hcp_out

height

help

hex24b_track

hex24f_track

hex5_track

hex_mesh

hex_mesh2

hex_query

hide

histeq_scale

histinv

histogram

hollow

hydra

hydra_aux_data

hydra_aux_names

hydra_mesh

hydra_mix_data

hydra_mix_names

hydra_start

hydra_xyz

h_array

h_blocks

h_close

h_collect

h_data

h_fparm

h_gblk

h_get_times

h_global

h_iparm

h_jr

h_jt

h_mix

h_openb

h_parm

h_show

h_ublk

h_uparm

h_ushow

I

i86_primitives

identof

idl_open

ieee

ieee_set

ieee_test

ifd12

ifd32

ifd52

ifdm12

im_part

include

include1

include_all

indgen

info

install_struct

integ

integ_flat

integ_linear

internal_rays

interp

interp2

ipq_setup

is_array

is_complex

is_func

is_integer

is_list

is_matrix

is_numerical

is_obj

is_pointer

is_present

is_prime

is_range

is_real

is_scalar

is_stream

is_string

is_struct

is_vector

is_void

J

jc

jpeg

jpl_planets

jr

jt

julian_day

justify

K

kepler

kepler2

keybd_focus

L

l2ll

laguerre

lcm

legal

legend

legndr

levmar

levmar_partial

library

light3

lightwf

limit3

limits

lissajous

lngamma

ln_gamma

log

log10

log1p

logxy

LPR_FORMAT

lround

lsdir

LUrcond

LUsolve

M

macl_primitives

mac_primitives

make

make_sphere

marker

marks

max

max_doublings

maybe_prompt

mcolor

md5

md5sum

median

merge

merge2

mergef

mergeg

mergei

merge_n

mesh3

mesh_loc

min

mkdir

mkdirp

mkdoc

mnbrent

moon

mouse

moush

mov3

movie

movie_stats

mphase

mpool

mpool_stats

mpool_test

mpy_nfan

mp_bcast

mp_boss

mp_cd

mp_connect

mp_dbg

mp_disconnect

mp_exec

mp_from

mp_handin

mp_handout

mp_include

mp_nfan

mp_partition

mp_pool

mp_prange

mp_probe

mp_rank

mp_recv

mp_recv1

mp_reform

mp_require

mp_send

mp_set_debug

mp_size

mp_staff

mp_start

mp_task

msize

msort

msort_rank

mspace

multic

multif

multio

multi_bav

multi_bins

multi_emiss

multi_gav

multi_gb

multi_gexist

multi_line

multi_memory

multi_no_dups

multi_opac

multi_srcf

multi_streak

multi_streak_save

multi_times

multi_zonelist

mxbrent

N

nallof

nameof

native_align

native_dlim

native_fix

native_flim

native_flt

nbow

nbow_negative

nc_addrec

nc_attrdef

nc_attribute

nc_create

nc_dimdef

nc_dimsof

nc_enddef

nc_open

nc_vardef

netcdf

noneof

noop

no_window

nraphson

numberof

O

obasis

opaque

open

open102

openb

openb_hooks

orgsof

orient

orient3

oxy

P

palette

palette_directory

parsedate

parse_info_file

pathform

pathsplit

pause

pcen_source

pc_primitives

pdf

pi

pic3_rays

picture_rays

pixels

pix_dpi

pix_origin

pix_window

pkg_fetch_url

pkg_get_keyword_value

pkg_info

pkg_install

pkg_list

pkg_mngr

pkg_remove

pkg_reset

pkg_save

pkg_setup

pkg_sync

pkg_sys

pkg_upgrade

pl3surf

pl3tree

plane3

plato

plc

plc_label

pldefault

pldj

pleb

pledit

plf

plfc

plfp

plg

pli

plm

plmesh

plmk

plmk_default

plq

plray

plray_lims

plsys

plt

plt1

pltitle

plug_dir

plug_in

plv

plwf

png

png_dpi

png_gray

png_smooth

pnm

pnm_colorize

pnm_display

pnm_read

pnm_write

poisson

poly

popen

pr1

prefix_comment

prefix_find

prefix_read

prefix_write

print

print_columns

print_format

process_argv

ptcen

Q

QRsolve

quit

R

random

randomize

random_ipq

random_n

random_rej

random_seed

random_u

random_x

range

range3

raw_style

rays

rcheby_build

rcheby_den

rcheby_eval

rcheby_fit

rcheby_num

rcheby_trunc

rdfile

rdline

read

read_clog

read_n

read_style

recover_file

recursive_rename

recursive_rmdir

redraw

reform

region

regress

regress_cov

reg_track

remove

rename

require

reset_options

reshape

restore

restore3

resume

rezone

rez_adjust_mesh

rez_all

rez_color

rez_drag

rez_kstyle

rez_ladj

rez_load_hook

rez_lstyle

rez_mark

rez_mesh

rez_next

rez_palette

rez_prev

rez_qireg

rez_qrt

rez_qzt

rez_radj

rez_regs

rez_zoom

re_part

rgb_read

rk4

rkdumb

rkutta

rk_integrate

rk_maxits

rk_maxstep

rk_minstep

rk_nbad

rk_ngood

rk_nstore

rmdir

roll

romberg

roots

rot3

rotext

round

rphase

rspace

S

save

save3

scalar

sch_moon

sch_planets

sech

select_file

select_name

series_n

series_r

series_s

set3_object

setz3

set_blocksize

set_cachesize

set_filesize

set_gpath

set_idler

set_path

set_primitives

set_style

set_tolerances

set_vars

sgi64_primitives

sha1

shock

show

sign

silo_cd

silo_close

silo_ls

silo_open

silo_var

simpson

sin

sinh

sizeof

slice2

slice2x

slice2_precision

slice3

smooth

snap

snap_worker

solar_system

sort

sort3d

sound

span

spanl

spann

spawn

spawn_callback

spin3

spline

splined

splinef

splinei

splinelsq

spline_coef

split_bytscl

split_palette

split_path

sprime

sqrt

sread

strcase

strchar

strchr

streak

streak_save

streak_saver

streak_times

streplace

strfind

strglob

strgrep

strgrepm

string

strlen

strmatch

strpart

strtok

strtolower

strtoupper

strtrim

structof

struct_align

strword

sum

sun3_primitives

sun_primitives

suspend

SVdec

SVsolve

swap

swrite

symbol_def

symbol_exists

symbol_names

symbol_set

sysafe

system

s_char

T

tan

tanh

TDsolve

test1

test2

test3

testb

testg

testlp

testmp

testmp1

testmp2

testmp3

testmp4

testmpool

text_cells

text_csv

text_lines

text_load

timer

timer_print

timestamp

tonum

totxt

toy_mesh

to_corners3

to_db

to_hsv

to_phase

to_rgb

track_combine

track_integ

track_rays

track_reduce

track_solve

transpose

triangle

tspline

txtest

type

typeof

tz_set

U

uncen

undo3

unit

unix_time

unref

unzoom

updateb

update_mesh

use

use_origins

u_cast

u_div

u_eq

u_ge

u_gt

u_le

u_lt

u_mod

u_ne

u_shr

V

vaxg_primitives

vax_primitives

vclose

vers_cmp

viewport

volume

vopen

vpack

vsave

vunpack

W

warranty

where

where2

width

window

window3

window_exists

window_geometry

window_list

window_select

winkill

wrap_args

write

write_home

write_style

X

xdr_primitives

xytitles

xyz3

Y

ylm_coef

yorick_stats

Y_BUILTIN

Y_CHAR

Y_COMPLEX

Y_DOUBLE

Y_FLOAT

Y_FUNCTION

Y_HOME

Y_INT

Y_LAUNCH

Y_LONG

Y_LVALUE

Y_OPAQUE

Y_POINTER

Y_RANGE

Y_SHORT

Y_SITE

Y_STREAM

Y_STRING

Y_STRUCT

Y_STRUCTDEF

Y_VOID

Z

zncen

zoom_factor

zroots

_

_

_car

_cat

_cdr

_cpy

_init_clog

_init_pdb

_jc

_jr

_jt

_len

_lst

_map

_multi_bins

_multi_integrate

_not_cdf

_not_pdb

_nxt

_parsedate_month_names

_prt

_read

_rev

_set_pdb

_write

__alpha

__cray

__dec

__i86

__ibmpc

__mac

__macl

__sgi64

__sun

__sun3

__vax

__vaxg

__xdr