Convert the following from postfix to infix using stacks:      a  b  c  -  +  d  e  -  f  g  -  h  +  / *

Convert/Evaluate the following expressions into postfix and prefix using stack. P =  (A + B) * C - (D - E) * (F + G) / H Q = (300 + 23) * (43 - 21) / (84 + 7) R = 3 * (2 + 4) * (5 + 7)

OCaml Code: Write an interpreter for OCaml that pushes integers to the stack, pushes string to the stack, pushes names to the stack, has booleans, errors and units, uses pop method, add method, subtraction method, multiplication method, division method, remainder method, negation of an integer, swap method, toString method, println method, and quit method. Give me the correct interpreter code that compiles for OCaml. The name of the file must be interpreter.ml. Make sure that the code compiles correctly and provide the code with the screenshot of the output.

You must use stacks to do the following conversions. 1. Convert the following from infix to prefix using stacks: a / ( b * c + d )

The solution is provided. Could you explain this question step by step.