MathExpressions
The output of this block is a vector obtained by evaluating the mathematical expressions specified as block parameters. The expressions are given in terms of variables u1,...un where ui is the ith entry of the unique input vector used by all of the expressions.
Library
Activate/MathOperations
Description
The output of this block is a vector obtained by evaluating the mathematical expressions specified as block parameters, each expression corresponds to an element of the resulting vector. The expressions are given in terms of variables u1,...un where ui is the i-th entry of the unique input vector used by all the expressions.
Only double data type is allowed. Supported syntax is listed as following
Arithmetical operator: +, -, *, /, ^
Logical operator: |, &, !, ~
Relational operator: >, <, >=, <=, ==, ~=, <>
Elementary functions: abs, exp ,log, log10, min, max, sign, sqrt, hypot
Trigonometric functions: acos, acosh, asin, asinh, atan, atan2, atanh, cos, cosh, sin, sinh, tan
Rounding functions: ceil, floor, int, round
General math functions: rem power pow
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
work | Workspace evaluation | |||
used_names | Used names | Hidden parameter used by the block to indicate used environment variables. | ||
nexx | Number of expressions | Number of expressions that should be evaluated. | Number | |
Exp | Math expressions: | Mathematical expressions that should be evaluated based on the inputs. | Structure | |
Exp/exx | Expression | Cell of strings | ||
zc | Apply zero-crossing | Enables the detection of zero crossings. | Scalar | 0 |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
Port 1 | explicit | output | 1 | |
Port 2 | explicit | input | 1 |
Advanced Properties
| Name | Value | Description |
|---|---|---|
always active | no | |
direct-feedthrough | yes | |
zero-crossing | depends on block parameters | |
mode | depends on block parameters | |
continuous-time state | no | |
discrete-time state | no |