![]() 4 Topic 1: Working with Freemat.5 Topic 1.1: The Main Screen - Ver 3.6.5 Topic 1.1.1: The History Window.6 Topic 1.1.2: The Files Window.7 Topic 1.1.3: The Workspace Window.7 Topic 1.2: The Command Window.8 Topic 1.3: Seeing the Results (or Not).8 Topic 1.4: How Many Decimal Points Do You Want?.9 Topic 1.5: Understanding Variables.10 Topic 1.6: Variable Types.10 Topic 1.7: The Variable "Ans".11 Topic 1.8: Built-In Variables.11 Topic 1.9: Using Built-In Functions.12 Topic 2: Working with Math.14 Topic 2.1: Basic Math Operations.14 Topic 2.2: Precedence.14 Topic 2.3: Cumulative Sum, Products and Factorials.15 Topic 2.4: Exponentials and Logarithms.16 Topic 3: Setting Up the Freemat Environment.19 Topic 3.1: Setting the Working Directory for Saving Files.19 Topic 3.2: Setting the Path for Retrieving Data Files. ![]() Table of Contents About the Author.4 User Assumptions.4 How I Put this Book Together.4 Licensing.4 Using with Freemat v3.6 Documentation. This, however, will cause c to become an int32 type, as opposed to a logical type.The Freemat Primer By Gary Schafer Ver. The other way to do this is simply force c(d) = 0, which uses the logical indexing mode of FreeMat (see the chapter on indexing for more details). To isolate this case, we can AND the two vectors, to find exactly those entries that appear as true in both a and b:Īt this point, we can modify the contents of c in two ways - the Boolean way is to AND \sim d with c, like so However, the XOR and OR operations differ on the fifth entry - the XOR would be false, since it is true if and only if exactly one of the two inputs is true. First, we create a pair of vectors to perform the XOR operation on: ![]() Suppose we want to calculate the exclusive-or (XOR) of two vectors of logical variables. Some simple examples of logical operators. Note that shortcut evaluation only works with scalar The first test returns false, and an attempt to evaluate the second expression Is not valid without shortcut evaluation (if p is an integer, for example, Not valid unless the prior test is successful. Shortcut evaluation is useful for doing a sequence of tests, each of which is Then if expr1 evaluates to true, then expr2 is not evaluated at all. Then if expr1 evaluates to false, then expr2 is not evaluated at all. The binary operators AND and OR can take scalar arguments as well as vector arguments, in which case, the scalar is operated on with each element of the vector.Īs of version 1.10, FreeMat supports shortcut evaluation. AND ( \&) - output y is true only if both the corresponding elements of a and b are both true.OR ( |) - output y is true if corresponding element of a is true or if corresponding element of b is true (or if both are true).NOT ( ~) - output y is true if the corresponding element of x is false, and ouput y is false if the corresponding element of x is true.There are three Boolean operators available in FreeMat.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |