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Unformatted text preview: Algortihms Part 2 28/02/2008 13:16:00 Condition Branch So far, in the method part of our algorithms, the instructions have been executed sequentially However, sometimes we need to vary the order of execution of the instructions. The order will be determined by the value of a condition We will test to determine whether the condition is true or false o If the condition is true , we will execute certain instructions o If the condition is false , we will executed other instructions But first, let us define a block as group of related instructions o A block can contain one or as many instructions as we want BLOCK 1-------------- Get X Get Y Let Z = X + Y Give Z BLOCK 2-------------- Let X = A + B * C /D Block The key feature of a block is that it has only one entrance (one way to come in) o By executing the first instruction in the block...
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This note was uploaded on 12/08/2009 for the course TEFLER ADM1300 taught by Professor Koppel during the Fall '09 term at University of Ottawa.
- Fall '09