In the postfix expression evaluation example, the two most recent operands are popped when an operator is encountered so that the subexpression can be evaluated. The first operand popped is treated as the second operand in the subexpression, and the second operand popped is the first. Give and explain an example that demonstrates the importance of this aspect of the solution.
Operations
In mathematics and computer science, an operation is an event that is carried out to satisfy a given task. Basic operations of a computer system are input, processing, output, storage, and control.
Basic Operators
An operator is a symbol that indicates an operation to be performed. We are familiar with operators in mathematics; operators used in computer programming are—in many ways—similar to mathematical operators.
Division Operator
We all learnt about division—and the division operator—in school. You probably know of both these symbols as representing division:
Modulus Operator
Modulus can be represented either as (mod or modulo) in computing operation. Modulus comes under arithmetic operations. Any number or variable which produces absolute value is modulus functionality. Magnitude of any function is totally changed by modulo operator as it changes even negative value to positive.
Operators
In the realm of programming, operators refer to the symbols that perform some function. They are tasked with instructing the compiler on the type of action that needs to be performed on the values passed as operands. Operators can be used in mathematical formulas and equations. In programming languages like Python, C, and Java, a variety of operators are defined.
In the postfix expression evaluation example, the two most recent
operands are popped when an operator is encountered so that
the subexpression can be evaluated. The first operand popped
is treated as the second operand in the subexpression, and the
second operand popped is the first. Give and explain an example
that demonstrates the importance of this aspect of the solution.
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