LET variable-name = expression

variable-name = expression

Assigns the value of expression to variable-name.
LET is optional - you may write assignments with or without the keyword. A variable is created on first assignment and its type follows its name:

no suffix -> integer
name ending with # -> real
name ending with $ -> string

Examples

Integer assignment (with and without LET)

LET N = 10
M = 20
PRINT N + M

Real and string assignments

X# = 3.14159
NAME$ = "ALICE"
PRINT X#, NAME$

Array element assignment

DIM A,5
A(0) = 42
A(1) = A(0) + 8
PRINT A(1)

Using an expression on the right-hand side

TOTAL = PRICE * QUANTITY

Notes

LET does not change scope. It is simply an optional keyword for assignment.
The left-hand side must be a variable (or array element), not an expression.
Strings are written with double quotes. To include a double quote inside a string you can build it with CHR$(34) if needed.
For arrays, ensure you have declared the array size with DIM before assigning elements.
GLOBAL is unrelated to LET: use GLOBAL when you want the value copied into child programs started with CHAIN.

See also:
Variable Naming · Variable Types · DIM · GLOBAL