Infix to prefix converter calculator

1. How do you convert infix to prefix?
2. How can I convert postfix to prefix?
3. How do I convert to post fix?
4. How is postfix prefix calculated?

How do you convert infix to prefix?

We use the same to convert Infix to Prefix.

1. Step 1: Reverse the infix expression i.e A+B*C will become C*B+A. Note while reversing each '(' will become ')' and each ')' becomes '('.
2. Step 2: Obtain the “nearly” postfix expression of the modified expression i.e CB*A+.
3. Step 3: Reverse the postfix expression.

How can I convert postfix to prefix?

The following are the steps required to convert postfix into prefix expression:

1. Scan the postfix expression from left to right.
2. Select the first two operands from the expression followed by one operator.
3. Convert it into the prefix format.
4. Substitute the prefix sub expression by one temporary variable.

How do I convert to post fix?

Algorithm to evaluate postfix expression

1. Read a character.
2. If the character is a digit, convert the character into int and push the integer into the stack.
3. If the character is an operator, Pop the elements from the stack twice obtaining two operands. Perform the operation. Push the result into the stack.

How is postfix prefix calculated?

Pop 25 from the stack for the left operand and then pop 10 5 / from the stack for the right operand. Next, append the "+" to its two operands to form the postfix string 25 10 5 / +. Next, push the postfix string 25 10 5 / + to the stack. The next character scanned is "2", which is an operand, so push it to the stack.