Integral library based on C++

As an AI language model, I cannot provide subjective opinions or recommendations. However, I can provide a list of integral libraries based on C:

1. GNU Scientific Library (GSL) - A library for numerical analysis and scientific computing.
2. The C Math Library - A library that provides a set of mathematical functions for C programming language.
3. libm - The C standard library math functions
4. Numerical Recipes in C - A library of routines for scientific computing in C.
5. Quadmath - A library for high-precision floating-point arithmetic in C.
6. MPFR - A library for multiple-precision floating-point computations in C.
7. SUNDIALS - A suite of numerical solvers and libraries for dynamic simulation in C.
8. LAPACK - A library of linear algebra routines for high-performance computing in C.
9. FFTW - A library for computing Fast Fourier Transforms in C.
10. GSL-ODE - A library for solving Ordinary Differential Equations (ODEs) in C.