Editing Dartmouth BASIC (section)

===List of BASIC statements===
; <code>DEF</code> : define single line functions
; <code>DIM</code> : (short for ''dimension'') define the size of arrays
; <code>END</code> : define the end of the program
; <code>STOP</code> : stop a program before the textual end
; <code>[[For loop|FOR]] / TO / STEP</code> : define loops
; <code>NEXT</code> : mark the end of loops
; <code>[[GOSUB]]</code> : transfer control to simple subroutines
; <code>[[Return statement|RETURN]]</code> : return control from simple subroutines
; <code>[[GOTO]]</code> : transfer control to another statement
; <code>IF / THEN</code> : decision making
; <code>LET / =</code> : assign formula results to a variable
; <code>PRINT</code> : output results
; <code>DATA</code> : store static data within the program
; <code>READ</code> : input data stored in DATA statements
; <code>REM</code> : comment ("REMark")

It also implemented floating-point numeric variables and arithmetic.