Principles of Basic Language

Introduction:
The program in basic language compound of finite number of statements. Each statement contains the following items :
1- Numbering ( the number of statement represent the recognized name of statement which differ one to another. This number must integer and prefer start from 10, 20,30,….).
2- Key word (such as READ, INPUT , IF, PRINT ,GOTO ,……etc. that represent a determine order).
3- Mathematical expression (such as equations for addition or multiplying or divisions or subtractions ….. etc)
Example1 :
10 Input x
20 y = x+5
30 Print y
40 End
Principles of Basic language :
1- Principle symbols :
Consist of
a- Digits : (0,1,2,3,…………..9).
b- English letters : (A,B,C,D,…………………Z)
c- Special symbols :
Symbols Meaning
+ Addition
? Subtraction
× Multiply
/ Division
^ or ** Power to number

[ ] , ( ) bows
= Equal
> Greater than
< Less than
=> or >= Greater than or equal
=< or <= Less than or equal
< > or > < Not equal
, Comma
; Point comma
“ “ double quotes