Mathematical Expression Checker using PDA

Expression Input

Enter Mathematical Expression:

Example Expressions:

1+2*3

(1+2)*3

((4/2)+3)*2

1+(2*3)/4

(1+2 [Invalid]

1++2 [Invalid]

Validation Result

Processing expression...

PDA Information

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States

q0: Start state
q1: Reading digits/operators
q2: Accept state

Input Alphabet

Digits: 0-9
Operators: +, -, *, /
Parentheses: (, )

Stack Operations

Push '(' when encountered
Pop '(' when ')' is found
Stack must be empty at end

Validation Rules

Balanced parentheses
Valid operator placement
Proper digit sequences
No consecutive operators