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Evaluate the following postfix expression using stack in C 1 2 3 1 uparrow uparrow 4 5 6star 7star?
Evaluation of a postfix expression is done in the following manner:
Scan the expression from the front.
1) If it is a number then push it into the stack.
2) If it is an operator, then pop two numbers from the stack and then evaluate them using the operator and push it back into the stack.
Now consider the given expression. I have presented the sequence in which the expression will be evaluated by using braces.
Note - I am using '!' symbol for uparrow
1231!!-456*7*-
->
12(3!1)!-456*7*-
->
1(2!(3!1))-456*7*-
->
(1-(2!(3!1)))56*7*-
->
(1-(2!(3!1)))(5*6)7*-
->
((1-(2!(3!1)))-((5*6)*7))
This will be your final result.
What else can I help you with?
What is a function of up arrow?
The up arrow function, often denoted as Knuth's up-arrow notation, is a way to express very large integers through a recursive method of exponentiation. It extends beyond simple exponentiation by using multiple arrows to represent operations like tetration, pentation, and so on. For example, ( a \uparrow b ) is equivalent to ( a^b ), while ( a \uparrow\uparrow b ) represents ( a ) exponentiated by itself ( b ) times. This notation allows mathematicians to describe vast quantities succinctly.
Does magnesium ribbon react with hydrocloric acid?
Yes, magnesium ribbon reacts with hydrochloric acid. When magnesium comes into contact with hydrochloric acid, it produces magnesium chloride and hydrogen gas. The reaction is exothermic and can be represented by the equation: ( \text{Mg} + 2\text{HCl} \rightarrow \text{MgCl}_2 + \text{H}_2 \uparrow ). This reaction typically results in the evolution of bubbles due to the release of hydrogen gas.
What is the equation of burned magnesium in water?
When magnesium burns in water, it reacts with water to form magnesium hydroxide and hydrogen gas. The balanced chemical equation for this reaction is: [ \text{Mg} + 2\text{H}_2\text{O} \rightarrow \text{Mg(OH)}_2 + \text{H}_2 \uparrow ] This reaction demonstrates that magnesium can react with water, especially when heated, producing magnesium hydroxide and releasing hydrogen gas.
What acid would you react with calcium to make calcium chloride?
To produce calcium chloride, you would react calcium with hydrochloric acid (HCl). The reaction between calcium and hydrochloric acid yields calcium chloride and hydrogen gas. The balanced chemical equation for the reaction is: [ \text{Ca} + 2\text{HCl} \rightarrow \text{CaCl}_2 + \text{H}_2 \uparrow ] This process produces calcium chloride in solution.
What is the spin notation for silver?
The spin notation for silver, which has an atomic number of 47, is typically represented as ( ^{107}\text{Ag} ) for its most stable isotope, silver-107. In terms of electron configuration, silver has a filled d-subshell and its outermost electron configuration can be represented as ( [Kr] 4d^{10} 5s^1 ). The spin of the single unpaired electron in the 5s orbital is often denoted as ( \uparrow ) for spin-up or ( \downarrow ) for spin-down, depending on context. Thus, the total spin state can be described as ( S = \frac{1}{2} ).
