Data Item _force_constant.val
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General 
- Item name
- _force_constant.val
- Category name
- force_constant
- Attribute name
- val
- Required in PDB entries
- yes
- Used in currrent PDB entries
- No
Item Description
Enter the value for the selected or manually entered force constant parameter.
Data Type 
- Data type code
- float
- Data type detail
- int item types are the subset of numbers that are the floating numbers.
- Primitive data type code
- numb
- Regular expression
- -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?