Operator Precedence Rules:

A few operators have precedence over the others. For illustration, in the expression 4 + 5 * 3, the multiplication takes the precedence over addition, therefore at first 5 is multiplied by 3, then 4 is added to the result. Use of parentheses can change the precedence in an expression:

>> 4 + 5 * 3

ans =

19

>> (4 + 5) * 3

ans =

27

In a given precedence level, the expressions are computed from left to right (this is termed as the associativity).

Nested parentheses are the parentheses inside of others; the expression in the inner parentheses is computed first. For illustration, in the expression 5 - (6 *(4 + 2)), at first the addition is performed, then multiplication, and finally the subtraction to result in -31. Parentheses can also be simply used to make an expression clearer. For illustration, in the expression ((4 + (3 * 5))-1) the parentheses are not essential, but are used to present the order in which the expression will be computed.

For the operators which have been covered so far, the precedence is as shown below (from the maximum to the minimum):

() parentheses

^ exponentiation

- negation

*, /, \ all multiplication and division

+, - addition and subtraction

Posted Date: 10/18/2012 3:33:22 AM | Location : United States

Ask an Expert

Related Discussions:- Operator precedence rules, Assignment Help, Ask Question on Operator precedence rules, Get Answer, Expert's Help, Operator precedence rules Discussions

Write discussion on Operator precedence rules
Your posts are moderated

Write your message here..

Related Questions

Recognizing people in video based on their body", I am doing project "Recog... I am doing project "Recognizing people in video based on their body" the system will use MATLAB to detect people based on thier body and then recognize them from their clothes "us

Solution, Write a function that will take in a simplex tableau and an assoc... Write a function that will take in a simplex tableau and an associated basis, and return the initial feasible solution of the tableau x as a column vector, as well as the objective

Illustrations of calling the function, Illustrations of calling the functio... Illustrations of calling the function: Here are illustrations of calling the function: >> cylcost(32,73,4.50) ans = 661.5000 >> fprintf('The cost would be $%.2f\n'

Fcat writing, what 1000 times 2 what 1000 times 2

Content aware search system, KN match algorithm implementation in MATLAB. KN match algorithm implementation in MATLAB.

Find the total per phase inductance and per phase shunt, A 300 km, 3-phase,... A 300 km, 3-phase, 50Hz transmission line has spacing as shown in Figure 2. Each phase of the line consists of a bundle of three conductors.  (a) Find the total per-phase induct

Illustration of switch statement, Illustration of switch statement: He... Illustration of switch statement: Here are the two illustrations of calling this function: >> quiz = 22; >> lg = switchletgrade(quiz) lg = X >> quiz = 9; >>

planar pantograph-based leg, The diagram shown on the next page represents... The diagram shown on the next page represents a planar pantograph-based leg for a walking robot. This model utilizes only one DOF to generate the walking gait at the foot link 'n

Input in a for loop, Input in a for Loop: The script below repeats the... Input in a for Loop: The script below repeats the process of prompting the user for a number, and echo printing the number (that means simply printing it back out). A for loop

Nested programming, how do I make a second main function? how do I make a second main function?