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Assignment☆☆☆
LET statement
`LET Numeric_Variable = Numeric_Expression`
Examples.
`LET A=2+3`
calculates the expression on the right hand and assigns the value to the variable on the left hand.
`LET A=B`
assigns the value of B to A.
`LET A=A+1`
add 1 to A.
(Note)
'LET' cannot be omitted, because a LET statement is not an equation.

Numeric Variables
A numeric variable has the precision of 15 digits.
A result of an arithmetic operation, which has precision of over 16 digits, is rounded to 15 digits when it is assigned to a variable.
Example. The result of the following program never becomes 0.

    10 LET A=1/3
    20 PRINT 1/3-A
    30 END