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Graphics Interchange Format  |  1997-01-12  |  46.8 KB  |  345x549  |  4-bit (15 colors)
   ocr: Figure 3: Building an Expression Tree from an Expression String Expression String Expression Stack Operator Stack 1+2*3/(4-2) +2*3/(4-2) L 23/(4-2) 0 3/(4-2) 02 3/(4-2) 02 /(4-2) 023 (4-2) 000 4-2) 020 +/( 2) +/( 0234 2) 0000 +/(- ) +/(- 02302 of 00000 1 02002 - - - - 02342