Vlachopoulos Georgios Lecturer of Computer Science and Informatics Technological Institute of Patras, Department of Optometry, Branch of Egion Lecturer of Biostatistics Technological Institute of Patras, Department of Physiotherapy, Branch of Egion Programming in Matlab Basic Control Structures

SymbolMeaning ==Equal >Greater Than >=Greater or Equal <Less Than <=Less or Equal ~=Not Equal Vlachopoulos Georgios

SymbolMeaning &Logical AND (conjugation) |Logical OR (disjunction) ~Logical NOT (negation) Vlachopoulos Georgios

ABA & BA | B~ A~B False True FalseTrueFalseTrue False TrueFalse TrueFalseTrue False Vlachopoulos Georgios Priority : &  |  ~

 Selection Structures ◦ Simple Selection ◦ Composite Selection ◦ Nested Selection ◦ Multiple Selection  Iteration Structures Vlachopoulos Georgios

Simple Selection Vlachopoulos Georgios condition commands if condition commands end

Composite Selection Vlachopoulos Georgios Condition commands1 if condition commands1 else commands2 end commands2

Nested Selection Vlachopoulos Georgios if condition1 commands1 if condition 2 … else … end else if condition 3 … else … end

Multiple Selection Vlachopoulos Georgios if condition1 Commands1 elseif condition2 Commands2 elseif condition3 Commands3 …. elseif conditionN CommandsN else CommandsN+1 end Every multiple Selection can be written as nested

 Example 1  Create an m-file that receives from the user a value and calculates the absolute value without the use of the corresponding elementary function  Example 2  Create an m-file that receives from the user the coefficients of a first order linear equation and solves it. Vlachopoulos Georgios

 For  while Vlachopoulos Georgios Syntax for index=initial_value:final_value:step commands end Syntax While condition commands end

for i=1:100:1 disp (‘Your Name’) End i=1 while (i<=100) disp (‘Your Name’) i=i+1 end Vlachopoulos Georgios

 Exercise 1a: Create an m-file to calculate the sum: s=1+2+3+…  Exercise 1b: Convert the m-file to function that receives as argument the final value of the sum and calculates it.  Exercise 1c: Create an m-file to calculate the sum: s=1+2+3+… up to the value that the sum remains lower to  Exercise 2: Create an m-file to calculate the product: p=3*5*7*…*21  Exercise 4: Create an m-file to calculate the sum: s= …50 4 up to the value that the sum remains lower to Vlachopoulos Georgios

 Exercise 5: Create an m-file to calculate the sum: S= …  Exercise 6: Create an m-file to calculate the sum: s=3!-4!+5!-6!+7!-…+21!  Exercise 7: Create an m-file to calculate the sum: Vlachopoulos Georgios