| MItem(Double) | Automatically supports positive and negative values. |
| MItem(MItem) | Math element constructor. Copies existing element content. |
| MItem(Double, Boolean, Boolean) | Math element constructor. Copies existing element content. |
| MItem(MItem, Boolean, Boolean) | Math element constructor. Copies existing element content. |
| MItem(MItem, String, NullableDouble, TermType, Boolean, Boolean) | Math element constructor. |