‹ Back to the paper
Convert the following *infix* notation to *postfix* form.
Convert the following *infix* notation to *postfix* form.
$(A * B\text{^}C) + (D * E) \quad \text{where } B\text{^}C = B^C$
Answer
Answer
AI$(A * B\text{^}C) + (D * E)$
Since ^ (exponentiation) has the highest precedence and is right-associative, evaluate B^C first: $B\ C\ \text{^}$
Then $A*(B\text{^}C) \to A\ B\ C\ \text{^}\ *$
$D*E \to D\ E\ *$
Combine both operands of the outer + :
Postfix: $A\ B\ C\ \text{^}\ *\ D\ E\ *\ +$
From ISC 2025 Improvement Computer Science Paper 1, question 2(i).