---
name: "sc_OneBodyOneCenterDerivInt"
section: "3"
platform: "linux"
package: "libsc-doc"
version: "2.3.1-22"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/sc_OneBodyOneCenterDerivInt"
---

# sc\_OneBodyOneCenterDerivInt(3)

OneBodyOneCenterDerivInt is an abstract base class for objects that compute one body derivative integrals on a single center.

## NAME

sc::OneBodyOneCenterDerivInt - **OneBodyOneCenterDerivInt** is an abstract base class for objects that compute one body derivative integrals on a single center.

## SYNOPSIS

`#include <obint.h>`

Inherits **sc::RefCount**.

### Public Member Functions

**OneBodyOneCenterDerivInt** (**Integral** \*, const **Ref**\< **GaussianBasisSet** \> &b)\
 int **nbasis** () const\
 Return the number of basis functions on center one.  int **nbasis1** () const\
 Return the number of basis functions on center one.  int **nshell** () const\
 Return the number of shells on center one.  int **nshell1** () const\
 Return the number of shells on center one.  **Ref**\< **GaussianBasisSet** \> **basis** ()\
 Return the basis set on center one.  **Ref**\< **GaussianBasisSet** \> **basis1** ()\
 Return the basis set on center one.  const double \* **buffer** () const\
 The computed shell integrals will be put in the buffer returned by this member.  virtual void **compute\_shell** (int ish, **DerivCenters** &)=0\
 **Compute** the derivative integrals and place the result in the buffer returned by **buffer()**.  virtual void **compute\_shell** (int ish, int center)=0\
 **Compute** the derivative integrals with respect to the given center and place the result in the buffer returned by **buffer()**.

### Protected Attributes

**Integral** \* **integral\_**\
 **Ref**\< **GaussianBasisSet** \> **bs1**\
 double \* **buffer\_**\

### Additional Inherited Members

## Detailed Description

**OneBodyOneCenterDerivInt** is an abstract base class for objects that compute one body derivative integrals on a single center.

## Member Function Documentation

### const double \* sc::OneBodyOneCenterDerivInt::buffer () const

The computed shell integrals will be put in the buffer returned by this member. \

## Author

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