User Tools

Site Tools

You are here: start » basic
basic

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
basic [2020/04/16 18:16]
smj 		basic [2020/04/18 01:39] (current)
smj
Line 18: Line 18:
 ====== BASIC Programming Examples ====== ====== BASIC Programming Examples ======
  
-There are many statements available to you in BASIC, but here are a few that can get you started and will work across many BASIC interpreters.  Check out the BASIC Reference Manuals section below for all the statements available for a particular system.  Statement names and syntax can vary a bit. These examples are run under [[unix_survival|UNIX System V]] on the [[lcm3b2|AT&T 3B2 1000-70]] using the Bell Labs BASIC interpreter, but are generic enough to run on any of the BASIC systems available.+There are many statements available to you in BASIC, but here are a few that can get you started and will work across many BASIC interpreters.  Check out the BASIC Reference Manuals section below for all the statements available for a particular system.  Statement names and syntax can vary a bit. These examples are run under [[unix_survival|UNIX System V]] on the [[at_t_3b2_1000-70|AT&T 3B2 1000-70]] using the Bell Labs BASIC interpreter, but are generic enough to run on any of the BASIC systems available.
  
       UNIX System V  R.3 (WINS) (lcm3b2)       UNIX System V  R.3 (WINS) (lcm3b2)
Line 42: Line 42:
      *print a      *print a
       1        1 
-      +           
      * REM *** STRINGS are quoted in BASIC and to use a variable as a string, just append '$' to it      * REM *** STRINGS are quoted in BASIC and to use a variable as a string, just append '$' to it
      *print "Hello World!"      *print "Hello World!"
Line 49: Line 49:
      * print a$      * print a$
      Hello World!      Hello World!
-     +          
      * REM *** Now let's write it as a program with line numbers      * REM *** Now let's write it as a program with line numbers
      *10 print "Hello World!"      *10 print "Hello World!"
      *20 end      *20 end
 +     
      * REM *** The LIST command will show us what we typed in      * REM *** The LIST command will show us what we typed in
      *list      *list
      10 print "Hello World!"      10 print "Hello World!"
      20 end      20 end
-     +          
      * REM *** The RUN command will run our program      * REM *** The RUN command will run our program
      *run      *run
Line 161: Line 161:
       1        1 
       0        0 
 +           
 +     * REM *** Here is an advanced example which will introduce nested FOR loops
 +     * REM *** and the function INT (integer) and SIN (sine) to calculate a sine wave
 +     
 +     *list
 +     10 let w = 2  
 +     15 let h = 20
 +     20 let t = 6.28318/h  
 +     25 let s = 35
 +     30 for i = 1 to w
 +     35 for j = 0 to 6.38318 - t step t  
 +     40 let a = int(sin(j) * s + 0.5)  
 +     45 for k = 1 to s + a
 +     50 print " ";
 +     55 next k
 +     60 print "+"  
 +     65 next j
 +     70 next i
 +     *run
 +                                        +
 +                                                   +
 +                                                             +
 +                                                                    +
 +                                                                         +
 +                                                                           +
 +                                                                         +
 +                                                                    +
 +                                                             +
 +                                                   +
 +                                        +
 +                             +
 +                   +
 +            +
 +       +
 +     +
 +       +
 +            +
 +                   +
 +                             +
 +                                        +
 +                                                   +
 +                                                             +
 +                                                                    +
 +                                                                         +
 +                                                                           +
 +                                                                         +
 +                                                                    +
 +                                                             +
 +                                                   +
 +                                        +
 +                             +
 +                   +
 +            +
 +       +
 +     +
              
      * REM *** To return back to UNIX, type the command "SYSTEM"      * REM *** To return back to UNIX, type the command "SYSTEM"
Line 168: Line 223:
 ====== BASIC Reference Manuals ====== ====== BASIC Reference Manuals ======
  
-  * Control Data Corporation BASIC(([[http://bitsavers.trailing-edge.com/pdf/cdc/cyber/lang/basic/19980300B_BASIC_Language_Version_2_Reference_Nov74.pdf|CDC Basic v2 Reference]]))+Visit our repository for [[https://livingcomputers.org/Computer-Collection/Online-Systems/User-Documentation.aspx|User Documentation for Online Systems]] for formal user and reference manual. 
  
  
basic.1587060974.txt.gz · Last modified: 2020/04/16 18:16 by smj

Page Tools

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki