Sharp PC-1403 - Page 98

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T he RUN mode i s u sed to ex ec ute th e program s y ou cr ea t e.
The PROgr a m m od e i s us ed to ent e r and e di t your pr ogra m s .
S om e v e r b s may also be u s ed as c o mm an ds . (See Chapter 8 f or a co m p l ete li sti n g o f
B AS I C co mm a n ds and thei r u s e on th e com p ute r . )
RU N
N E W
RADIAN
Commands a re instru c t i ons to t h e com pu te r whic h a re en t e r ed ou t s ide of a program.
Comma n ds i n st ruct t he co mpu te r t o p erform so m e act io n w i th yo ur pro gram or to s et
m o des w h i c h a ffe c t ho w y o ur prog r am s a re e xec u ted .
Unl i k e verbs, comm a nd s h a v e imm e d i at e e ff e c t s - as s oon as yo u compl e t e en te r i ng
th e c omma nd ( by pr ess in g t he I E N TE R I k ey) , th e co mm a nd wi ll b e exec u te d .
C omm and s ar e not p rece de d by a line n um b er :
BASIC Commands
O p er a n d s prov i de inf o rm at i o n t o t he compute r tell ing it wh at d ata t he ver b wi ll a ct u p on.
Some verbs r e qu i re operan d s ; wit h othe r v e rbs the y are opt i ona l. C ertain v e rb s do
n ot allow ope r ands . (S ee Ch a pter 8 for a co m ple te l i st i n g o f BASIC verbs and t h e ir use
o n th e comp u t e r. )
10 : PR I N T " HELLO "
2 0 : E N D
3 0:
Some s tateme n t s req u i re o r allo w an operand :
10: PRINT " H E LLO "
20: END
30:
A ll B A S I C s t atements must contain verbs . Verbs tell the c om pu t e r what a ctio n to
pe rf orm . A ver b i s a l ways co n tained w i t h in a p r og r am, a nd as s u c h i s n ot acted upon
i mmed i a t e l y .
BASIC Verbs
P r og ra mming t he Comput e r ·