示例#1
0
double* get_vector_ptr(VALUE ary, size_t *stride, size_t *n)
{
  gsl_vector *v = NULL;
  gsl_vector_complex *vc = NULL;
  gsl_matrix *m;
  if (VECTOR_P(ary)) {
    Data_Get_Struct(ary, gsl_vector, v);
    *stride = v->stride;
    *n = v->size;
    return v->data;
  } else if (VECTOR_COMPLEX_P(ary)) {
    Data_Get_Struct(ary, gsl_vector_complex, vc);
    *stride = vc->stride;
    *n = vc->size*2;
    return vc->data;
  } else if (MATRIX_P(ary)) {
    Data_Get_Struct(ary, gsl_matrix, m);
    *stride = 1;
    *n = m->size1*m->size2;
    return m->data;
#ifdef HAVE_NARRAY_H
  } else if (NA_IsNArray(ary)) {
    VALUE ary2;
    *n = NA_TOTAL(ary);
    *stride = 1;
    ary2 = na_change_type(ary, NA_DFLOAT);
    return NA_PTR_TYPE(ary2,double*);
#endif

#ifdef HAVE_NMATRIX_H
  } else if (NM_IsNMatrix(ary)) {
示例#2
0
文件: math.c 项目: blackwinter/rb-gsl
VALUE rb_gsl_math_complex_eval(gsl_complex (*func)(gsl_complex), VALUE obj)
{
  gsl_complex *z, *znew;
  gsl_vector_complex *v, *vnew;
  gsl_matrix_complex *m, *mnew;
  size_t i, j;
  if (COMPLEX_P(obj)) {
    Data_Get_Struct(obj, gsl_complex, z);
    znew = xmalloc(sizeof(gsl_complex));
    *znew = (*func)(*z);
    return Data_Wrap_Struct(cgsl_complex, 0, free, znew);
  } else if (VECTOR_COMPLEX_P(obj)) {
    Data_Get_Struct(obj, gsl_vector_complex, v);
    vnew = gsl_vector_complex_alloc(v->size);
    for (i = 0; i < v->size; i++) {
      z = GSL_COMPLEX_AT(v, i);
      gsl_vector_complex_set(vnew, i, (*func)(*z));
    }
    return Data_Wrap_Struct(cgsl_vector_complex, 0, gsl_vector_complex_free, vnew);
  } else if (MATRIX_COMPLEX_P(obj)) {
    Data_Get_Struct(obj, gsl_matrix_complex, m);
    mnew = gsl_matrix_complex_alloc(m->size1, m->size2);
    for (i = 0; i < m->size1; i++) {
      for (j = 0; j < m->size2; j++) {
        gsl_matrix_complex_set(mnew, i, j, (*func)(gsl_matrix_complex_get(m, i, j)));
      }
    }
    return Data_Wrap_Struct(cgsl_matrix_complex, 0, gsl_matrix_complex_free, mnew);
  } else {
    rb_raise(rb_eTypeError,
             "wrong argument type %s "
             " (GSL::Complex or GSL::Vector::Complex expected)",
             rb_class2name(CLASS_OF(obj)));
  }
}
示例#3
0
文件: sf_power.c 项目: Fudge/rb-gsl
static VALUE rb_gsl_sf_pow_int(VALUE obj, VALUE x, VALUE n)
{
  VALUE argv[2];
  if (COMPLEX_P(x) || VECTOR_COMPLEX_P(x) || MATRIX_COMPLEX_P(x)) {
    argv[0] = x;
    argv[1] = n;
    return rb_gsl_complex_pow(2, argv, obj);
  }
  return rb_gsl_sf_eval_double_int(gsl_sf_pow_int, x, n);
}
示例#4
0
文件: math.c 项目: blackwinter/rb-gsl
static VALUE rb_gsl_pow_int(VALUE obj, VALUE xx, VALUE nn)
{
  VALUE x, ary, argv[2];
  size_t i, j, size;
  int n;
  gsl_vector *v = NULL, *vnew = NULL;
  gsl_matrix *m = NULL, *mnew = NULL;

  if (CLASS_OF(xx) == rb_cRange) xx = rb_gsl_range2ary(xx);
  switch (TYPE(xx)) {
  case T_FIXNUM:
  case T_BIGNUM:
  case T_FLOAT:
    return rb_float_new(gsl_pow_int(NUM2DBL(xx), FIX2INT(nn)));
    break;
  case T_ARRAY:
    CHECK_FIXNUM(nn);
    n = FIX2INT(nn);
    size = RARRAY_LEN(xx);
    ary = rb_ary_new2(size);
    for (i = 0; i < size; i++) {
      x = rb_ary_entry(xx, i);
      Need_Float(x);
      //      rb_ary_store(ary, i, rb_float_new(gsl_pow_int(RFLOAT(x)->value, n)));
      rb_ary_store(ary, i, rb_float_new(gsl_pow_int(NUM2DBL(x), n)));
    }
    return ary;
    break;
  default:
#ifdef HAVE_NARRAY_H
    if (NA_IsNArray(xx)) {
      struct NARRAY *na;
      double *ptr1, *ptr2;
      CHECK_FIXNUM(nn);
      n = FIX2INT(nn);
      GetNArray(xx, na);
      ptr1 = (double*) na->ptr;
      size = na->total;
      ary = na_make_object(NA_DFLOAT, na->rank, na->shape, CLASS_OF(xx));
      ptr2 = NA_PTR_TYPE(ary, double*);
      for (i = 0; i < size; i++) ptr2[i] = gsl_pow_int(ptr1[i], n);
      return ary;
    }
#endif
    if (VECTOR_P(xx)) {
      CHECK_FIXNUM(nn);
      n = FIX2INT(nn);
      Data_Get_Struct(xx, gsl_vector, v);
      vnew = gsl_vector_alloc(v->size);
      for (i = 0; i < v->size; i++) {
        gsl_vector_set(vnew, i, gsl_pow_int(gsl_vector_get(v, i), n));
      }
      return Data_Wrap_Struct(cgsl_vector, 0, gsl_vector_free, vnew);
    } else if (MATRIX_P(xx)) {
      CHECK_FIXNUM(nn);
      n = FIX2INT(nn);
      Data_Get_Struct(xx, gsl_matrix, m);
      mnew = gsl_matrix_alloc(m->size1, m->size2);
      for (i = 0; i < m->size1; i++) {
        for (j = 0; j < m->size2; j++) {
          gsl_matrix_set(mnew, i, j, gsl_pow_int(gsl_matrix_get(m, i, j), n));
        }
      }
      return Data_Wrap_Struct(cgsl_matrix, 0, gsl_matrix_free, mnew);
    } else if (COMPLEX_P(xx) || VECTOR_COMPLEX_P(xx) || MATRIX_COMPLEX_P(xx)) {
      argv[0] = xx;
      argv[1] = nn;
      return rb_gsl_complex_pow_real(2, argv, obj);
    } else {
      rb_raise(rb_eTypeError, "wrong argument type %s (Array or Vector or Matrix expected)", rb_class2name(CLASS_OF(xx)));
    }
    break;
  }
  /* never reach here */
  return Qnil;
}
示例#5
0
文件: math.c 项目: blackwinter/rb-gsl
static VALUE rb_gsl_atanh(VALUE obj, VALUE x)
{
  if (COMPLEX_P(x) || VECTOR_COMPLEX_P(x) || MATRIX_COMPLEX_P(x))
    return rb_gsl_math_complex_eval(gsl_complex_arctanh, x);
  return rb_gsl_math_eval(gsl_atanh, x);
}
示例#6
0
static VALUE rb_gsl_sf_cos(VALUE obj, VALUE x)
{
  if (COMPLEX_P(x) || VECTOR_COMPLEX_P(x) || MATRIX_COMPLEX_P(x))
    return rb_gsl_math_complex_eval(gsl_complex_cos, x);
  return rb_gsl_sf_eval1(gsl_sf_cos, x);
}