| Element | Defines the symbol and atomic mass of a chemical element |
| Insets4f | The general structure that defines the boundaries (in 32-bit float) of a rectangle |
| Insets4i | The general structure that defines the boundaries (in 32-bit integer) of a rectangle |
| KdItem2f | The 2-D coordinates (32-bit float) that are stored by a KdNode2f |
| KdNode2f | The node used to populate the KdTree2f |
| Mesh2D | The 2-D matrix (image) of values with rulers attached to each dimension |
| MQArrayFinder | Finds indices of elements in an array that are close to queried values |
| MQDescriptiveStatistics | The data structure used to calculate descriptive statistics of vectors and matrices |
| MQDimensions2i | Defines the dimensions of a rectangular area |
| MQFloatLink | A linked-list link holding the value of 32-bit single-floating point number |
| MQHeap | A binary heap of any type |
| MQIntLink | A linked-list link holding the value of a 32-bit integer |
| MQTextFile | |
