MQL4

Code is the text that is interpreted by the computer to perform the desired action according to defined instructions. Code is not easily readable by humans; therefore, the comments are…

The WHILE and DO WHILE statements are used to repeat a cycle of the block of instructions for an undefined number of times. The loop is interrupted once the termination…

The FOR statement is a loop that consists of a block of code that repeats a sequence of instructions until the termination condition is met. The FOR statement is used…

A loop is a basic concept in any programming language. It is simply a question repeatedly asked until an answer is provided. Once an answer is satisfied, the program will…

A SWITCH statement is similar to the IF and ELSE-IF statement. SWITCH is a selection control that depends on the condition provided by a single variable to control the algorithm…

An if statement is a conditional statement that changes the control flow according to a conditional outcome, true or false. As per Fig.55 and Fig.56, the illustration shows two IF…

An ELSE-IF statement is like the IF and ELSE statement; however, a choice is forced to be made at the end of the IF and ELSE statement. In the regular…

An ELSE statement is employed in conjunction with the IF statement. The ELSE statement will perform alternative computations and actions when the IF condition is not fulfilled. If the conditional…

Input storage classes are global variables and must be declared outside of blocks and functions. In the concept of MQL4 and MQL5, these input storage classes are also often named…

A program or expert advisor is constantly evaluating logical expressions to take decisions and to act accordingly. Logical expressions are answered by true or false. In our Fig.49 example, we…