Geometric sequence
Allows you to define an n-fold geometric sequence. That is, each term after the first is found by multiplying the previous by a fixed number. Select a different sequence type from the drop-down list if you require.
The dose value for the j-th step of an n-fold sequence is given by:
Example:
| Initial value | Base | 1st step | 2nd step | 3rd step | n-th step |
| = Initial value | = Initial value / Base | = Initial value / Base^2 | = Initial value / Base^n | ||
| 1 | 2 | 1.0 | 0.5 | 0.25 | 1 * 2^(1-n) |
| 8 | 2 | 8.0 | 4.0 | 2.0 | 8* 2^(1-n) |
| 1 | 0.5 | 1.0 | 2.0 | 4.0 | 1* (1/2)^(1-n) |
| 5 | 3 | 5.0 | 1.67 | 0.56 | 5* 3^(1-n) |
This element has the following attributes:
| Data type | Multiplicity | Usage | Default value |
| Node | 1...1 | required | none |
Context:
/Quantitative response assay/Setup/Preparation schemes/Preparation scheme/alternatives/