o2::its::math_utils Namespace Reference

Functions
	GPUhdi () float computePhi(float x
	if (o2::gpu::CAMath::Abs(d)< o2::its::constants::Tolerance)
return *k1 *k2 *y1 y3 k2 *x1 x2 k1 *x2	x3 (k2 - k1)
	return (z1 - z2)/d

Variables
float	y
float	y1
float float	x2
float float float	y2
float float float float	x3
float float float float float	y3
const float	a
const float	b
const float	den = o2::gpu::CAMath::Hypot(d * x1 - a, d * y1 - b)
const float	k1 = (y2 - y1) / dx21
const float	k2 = (y3 - y2) / dx32
float float float float	z1
float float float float float	z2
float	p
float float	xX0

Function Documentation

GPUhdi()

o2::its::math_utils::GPUhdi

(

)

Definition at line 38 of file MathUtils.h.

if()

o2::its::math_utils::if

(

)

Definition at line 48 of file MathUtils.h.

return()

o2::its::math_utils::return

(

z1 -

z2

)

x3()

return *k1 *k2 *y1 y3 k2 *x1 x2 k1 *x2 o2::its::math_utils::x3

(

k2 -

k1

)

Variable Documentation

a

const float o2::its::math_utils::a

Initial value:

=
    0.5f * ((y3 - y2) * (y2 * y2 - y1 * y1 + x2 * x2 - x1 * x1) - (y2 - y1) * (y3 * y3 - y2 * y2 + x3 * x3 - x2 * x2))

Definition at line 51 of file MathUtils.h.

b

float o2::its::math_utils::b

Initial value:

=
    0.5f * ((x2 - x1) * (y3 * y3 - y2 * y2 + x3 * x3 - x2 * x2) - (x3 - x2) * (y2 * y2 - y1 * y1 + x2 * x2 - x1 * x1))

Definition at line 53 of file MathUtils.h.

den

return d o2::its::math_utils::den = o2::gpu::CAMath::Hypot(d * x1 - a, d * y1 - b)

Definition at line 55 of file MathUtils.h.

k1

const float o2::its::math_utils::k1 = (y2 - y1) / dx21

Definition at line 72 of file MathUtils.h.

k2

const float o2::its::math_utils::k2 = (y3 - y2) / dx32

Definition at line 72 of file MathUtils.h.

p

float o2::its::math_utils::p

Definition at line 99 of file MathUtils.h.

x2

float float o2::its::math_utils::x2

Definition at line 44 of file MathUtils.h.

x3

float float float float o2::its::math_utils::x3

Definition at line 44 of file MathUtils.h.

xX0

float float o2::its::math_utils::xX0

Initial value:

{
  float beta = p / o2::gpu::CAMath::Hypot(mass, p)

Definition at line 99 of file MathUtils.h.

y

float o2::its::math_utils::y

Initial value:

{
  return o2::math_utils::fastATan2(-y, -x) + o2::constants::math::PI

Definition at line 28 of file MathUtils.h.

y1

float o2::its::math_utils::y1

Definition at line 44 of file MathUtils.h.

y2

float float float o2::its::math_utils::y2

Definition at line 44 of file MathUtils.h.

y3

float float float float float o2::its::math_utils::y3

Initial value:

{
  
  const float d = (x2 - x1) * (y3 - y2) - (x3 - x2) * (y2 - y1)

Definition at line 44 of file MathUtils.h.

z1

float float float float o2::its::math_utils::z1

Definition at line 79 of file MathUtils.h.

z2

float float float float float o2::its::math_utils::z2

Initial value:

{
  
  const float d = o2::gpu::CAMath::Hypot(x1 - x2, y1 - y2)

Definition at line 79 of file MathUtils.h.