Virtual Labs

1. Why is there a need to convert from infix to postfix and then evaluate, instead of directly evaluating infix?

a: It is easier to read for humans Explanation

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b: It is easier to It is easier to parse (be read by computer). Explanation

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c: Both a and b Explanation

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d: None of these. Explanation

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2. Postfix evaluation of 1 2 + 3 9 - + 4 + is _______.

a: 3 Explanation

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b: 2 Explanation

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c: 1 Explanation

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d: 4 Explanation

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3. Convert the expression from infix to postfix 1 + 1 - 3 * 4 / 2 + 3 - 8?

a: 1 1 + 3 - 4 * 2 / + 3 8 - Explanation

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b: 1 1 + 3 - 4 / 2 * 3 + 8 - Explanation

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c: 1 1 + 3 4 * 2 / - 3 + 8 - Explanation

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d: 1 1 * 3 + 4 - 2 + 3 / 8 - Explanation

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4. Convert the expression from Infix to Postfix a + b * (c ^ d - e) ^ (f + g * h) - i?

a: ab^cd-ef+d*h^*-i+ Explanation

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b: ab^cd-ef+d*h*^-i+ Explanation

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c: abcd^e-fgh*+^*+i- Explanation

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d: abcd^e-fgh*+*^+i- Explanation

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5. Convert the expression from Infix to Postfix a + b * c - d ^ e ^ f?

a: abc * + def ^^- Explanation

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b: abc * + de ^ f ^-\ Explanation

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c: ab + c *d - e ^ f ^ Explanation

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d: -+ a * bc ^^ def Explanation

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Infix and Postfix