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"ql/processes/hestonprocess"
HestonProcess
discretization
Class discretization
Hierarchy
discretization
Index
Methods
covariance
diffusion1
diffusion2
drift1
drift2
variance
Methods
covariance
covariance
(
p
:
StochasticProcess
, t0
:
Time
, x0
:
Real
[]
, dt
:
Time
)
:
Matrix
Parameters
p:
StochasticProcess
t0:
Time
x0:
Real
[]
dt:
Time
Returns
Matrix
diffusion1
diffusion1
(
p
:
StochasticProcess
, t0
:
Time
, x0
:
Real
[]
, dt
:
Time
)
:
Matrix
Parameters
p:
StochasticProcess
t0:
Time
x0:
Real
[]
dt:
Time
Returns
Matrix
diffusion2
diffusion2
(
p
:
StochasticProcess1D
, t0
:
Time
, x0
:
Real
, dt
:
Time
)
:
Real
Parameters
p:
StochasticProcess1D
t0:
Time
x0:
Real
dt:
Time
Returns
Real
drift1
drift1
(
p
:
StochasticProcess
, t0
:
Time
, x0
:
Real
[]
, dt
:
Time
)
:
Real
[]
Parameters
p:
StochasticProcess
t0:
Time
x0:
Real
[]
dt:
Time
Returns
Real
[]
drift2
drift2
(
p
:
StochasticProcess1D
, t0
:
Time
, x0
:
Real
, dt
:
Time
)
:
Real
Parameters
p:
StochasticProcess1D
t0:
Time
x0:
Real
dt:
Time
Returns
Real
variance
variance
(
p
:
StochasticProcess1D
, t0
:
Time
, x0
:
Real
, dt
:
Time
)
:
Real
Parameters
p:
StochasticProcess1D
t0:
Time
x0:
Real
dt:
Time
Returns
Real
Globals
"ql/processes/hestonprocess"
Heston
Process
discretization
covariance
diffusion1
diffusion2
drift1
drift2
variance
Phi
Si
cdf_
nu_
ds
cdf_
nu_
ds_
minus_
x
ch
cornish
Fisher
Eps
int_
ph
pade
ph