Operator precedence rules, MATLAB Programming

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







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
Related Questions
As shown in Figure 1, Ecosystem carbon (C) cycles in a tropical forest can be modeled using three "compartments":  aboveground (AG), belowground (BG), and soil organic matters (SOM

Example of Linear indexing: For illustration, the following substitutes the whole second row with values from a vector  The whole row or column could also be changed : >> m


Constants: The variables are used to store values which can change, or that are not known ahead of the time. Most of languages also have the capacity to store constants that a

Use the MATLAB randn function to generate 1000 points for x. Generate the output of the unknown system with the ?lter function and b=[1232 1] and a=[1]. Normalise the ?lter output

The following four 4 equations are needed to be plotted as CONTOUR lines on the axes space (C, T) where C is the horizontal axis, and T is the vertical axis. Contour lines for

hey ! why the command sawtooth and square does not exist in Matlab R2012a?

i made graph using adjacent matrix i have to find the critical path on that graph in matlab work can you please give me that code.

Solve the optimality condition for each P equation against M according to the following relation: Condition for Optimality:         ∇ M = λ ∇ P      with respect to C and T.

Vectors and Matrices: The Vectors and matrices are used to store sets of values, all of which are similar type. A vector can either be a column vector or a row vector. The mat