These are what i get from the 2nd meeting in algorithm & programming

Operator, Operand, and Arithmetic:

–Operator and Operand Introduction

–Assignment Operators

–Arithmetic Operators

–Relational Operators

–Conditional Expressions

–Logical Operators

–Bitwise Operators

–Pointer Operators

–Precedence and Associative

Operator and Operand Introduction

• Operator is a symbol to process values in result for a new value
• Operand is part which specifies what data is to be manipulated or operated on
• Example :

  C = A + B 

  (= and + sign are operators, A, B and C are operands)

• Based on its operand number, operator can be divided into three:

–Unary operator  (needs one operand)

–Binary operator  (needs two operands)

–Ternary operator  (needs three operands)

Assignment Operators

• Example:

x = 2;  // constant

x = y;  // other variable

x = 2 * y;  // expression

x = sin (y);  // function

• Type of the result will follow the left hand side operand

int x = 7/2;     /*x value is 3 not 3.5*/

float y = 3;  /*y value is 3.000 */

Arithmetic Operators

• Modulo

–Symbol : %

–Binary operator

–To find reminder of a division

–N % 2, can be used to find an odd or even number

• N % 2 = 0 ® N is even
• N % 2 = 1 ® N is odd
• Increment and Decrement

–Symbol : ++(increment), –(decrement)

–Unary operator

–Increase (++) and decrease (–) the value of a variable by 1.

–Its position can be in the front (pre) or after (post) a variable.

Relational Operators

Use to compare to values with TRUE or FALSE result

FALSE in C language equals to the value of zero

TRUE on the other hand not equal to zero

TRUE set by a C program at run time equal to the value of one

Conditional Expressions

• Given the following statement:

if(a > b) z = a;

else z = b;

• The above statement can be reformed to a conditional expression
• Conditional expression using ternary operator : ‘?’ and ‘:’
• Syntax :

  exp1 ? exp2 : exp3;

• Example (similar meaning with the above statement):

z = (a > b) ? a : b;