# SPLINE

Section can be repeated.

specifies parameters to set up the splines used in the nonboned interactions (both pair body potential and many body potential) [Edit on GitHub]

## Keywords

- EMAX_ACCURACY

- EMAX_SPLINE

- EPS_SPLINE

- NPOINTS

- R0_NB

- RCUT_NB

- UNIQUE_SPLINE

## Keyword descriptions

EMAX_ACCURACY: real = 2.00000000E-002 [hartree]

  Usage: EMAX_ACCURACY <REAL>

  Specify the maximum value of energy used to check the accuracy requested through EPS_SPLINE. Energy values larger than EMAX_ACCURACY generally do not satisfy the requested accuracy [Edit on GitHub]

EMAX_SPLINE: real = 5.00000000E-001 [hartree]

  Usage: EMAX_SPLINE <REAL>

  Specify the maximum value of the potential up to which splines will be constructed [Edit on GitHub]

EPS_SPLINE: real = 1.00000000E-007 [hartree]

  Usage: EPS_SPLINE <REAL>

  Specify the threshold for the choice of the number of points used in the splines (comparing the splined value with the analytically evaluated one) [Edit on GitHub]

NPOINTS: integer = -1

  Usage: NPOINTS 1024

  Override the default search for an accurate spline by specifying a fixed number of spline points. [Edit on GitHub]

R0_NB: real = 4.76259488E-001 [angstrom]

  Usage: R0_NB <REAL>

  Specify the minimum value of the distance interval that brackets the value of emax_spline. [Edit on GitHub]

RCUT_NB: real = -1.00000000E+000 [angstrom]

  Usage: RCUT_NB {real}

  Cutoff radius for nonbonded interactions. This value overrides the value specified in the potential definition and is global for all potentials. [Edit on GitHub]

UNIQUE_SPLINE: logical = F

  Lone keyword: `T`

  Usage: UNIQUE_SPLINE <LOGICAL>

  For few potentials (Lennard-Jones) one global optimal spline is generated instead of different optimal splines for each kind of potential [Edit on GitHub]