Download Flowcharts and Pseudocode for Computing Algorithms in Engineering - Prof. Maria Alba-Flore and more Study notes Engineering in PDF only on Docsity! 3/22/2009 1 Mechanical and Electrical Engineering Technology Spring 2009 ENGR 1731 Computing for Engineers Prof. Alba‐Flores Flowcharts and Pseudocode An Algorithm is a well-defined procedure to solve a problem. An algorithm is a very useful tool that a programmer uses to express the method that will be used to solve a problem Algorithms . Once that an algorithm is well defined, the programmer can translate it directly to a specific computer language. Algorithms can be represented as flowcharts or/and pseudocodes Flowcharts and pseudocodes are also other useful tools that are used to plan how a problem can be solve using a programming language. Flowcharts and poseudocodes are independent of the i l Flowcharts and Pseudocode programm ng anguage . If you have a good flowchart (or pseudocode) for a given problem, it will be straightforward to implement that flowchart ( or pseudocode) into a program in any computing language. A Flowcharts is a graphical approach to create a coding plan. A pseudocode is a verbal description of your Flowcharts and Pseudocode (cont.) coding plan. You may want to use either or both for your programming projects For simple programs, pseudocode may be the best planning approach. Example 1. Suppose we want to create a program to convert mph to ft/s. The output should be a complete table with a title and column headings. A pseudocode for this example could be: • Define the vector of mph values • Convert mph to ft/s • Combine the mph and ft/s vectors into an array • Create a table title • Create column headings • Display the table An equivalent flowchart planning could be: 3/22/2009 2 Flowchart are pictoral representation of a computer program. Flowcharts and poseudocodes are tools intended to help programmers to create better computer programs. More on Flowcharts and Pseudocode Flowcharts can also be use effectively to illustrate the structure of a program to nonprogrammers, since flowcharts emphasize the logical progression of ideas. For complicated programming tasks, the combination of flowcharts and pseudocodes are highly recommended. Flow charts are very useful because they help to t ”bi i t ” f More on Flowcharts and Pseudocode (cont.) crea e a g p c ure o your program . To create flowcharts it is recommended that you use the standard flowcharting symbols. Standard Flowcharting Symbols Example 2. Create a flowchart that will show how the following problem can be solved using a computer language. - You are assigned to write a program that will evaluate whether to issue a driver license based on the applicant age. A flowchart that illustrate the process could be: Example 3. Create a flowchart that will show how the following problem can be solved using a computer language. -You are assigned to write a program that will determine test grades based on the scores. The grades should be based on the following criteria: Grade Score A 90 to 100 A flowchart that illustrate the process could be: B 80 to 90 C 70 to 80 D 60 to 70 F < 60
