HP 49g+ hp 48gii graphing calculator Manuale Utente
3-62 Full Command and Function Reference
Access:
…µ
FACT
Flags:
Numerical Results (–3), Underflow Exception (-20), Overflow Exception (-21)
Input/Output:
Level 1/Argument 1
Level 1/Item 1
n
→
n!
x
→
Γ(x + 1)
'symb'
→
'(symb)!'
See also:
COMB, PERM, !
FACTOR
CAS:
Factorize a polynomial to irreducible polynomials, or an integer to primes.
FACTORMOD
CAS:
Factorize a polynomial modulo the current modulus.
FACTORS
CAS:
For a value or expression, return a list of prime factors and their multiplicities.
FANNING
Type: Function
Description: Fanning Friction Factor Function: Calculates the Fanning friction factor of certain fluid flows.
Description: Fanning Friction Factor Function: Calculates the Fanning friction factor of certain fluid flows.
FANNING calculates the Fanning friction factor, a correction factor for the frictional effects of
fluid flows having constant temperature, cross-section, velocity, and viscosity (a typical pipe flow,
for example). x
fluid flows having constant temperature, cross-section, velocity, and viscosity (a typical pipe flow,
for example). x
x/D
is the relative roughness (the ratio of the conduit roughness to its diameter).
y
Re
is the Reynolds number. The function uses different computation routines for laminar flow
(Re
≤ 2100) and turbulent flow (Re > 2100). x
x/D
and y
Re
must be real numbers or unit objects
that reduce to dimensionless numbers, and both numbers must be greater than 0.
Access:
…µ
FANNING
Flags:
Numerical Results (–3)
Input/Output:
Level 2/Argument 1 Level 1/Argument 2
Level 1/Item 1
x
x/D
y
Re
→
x
fanning
x
x/D
'symb'
→
'FANNING(x
x/D
,symb)'
'symb'
y
Re
→
'FANNING(symb,y
Re
)'
'symb
1
'
'symb
2
'
→
'FANNING(symb
1
,symb
2
)'
See also: DARCY
FAST3D
Type: Command
Description: Fast 3D Plot Type Command: Sets the plot type to FAST 3D.
Description: Fast 3D Plot Type Command: Sets the plot type to FAST 3D.
When plot type is set to FAST3D, the DRAW command plots an image graph of a 3-vector-
valued function of two variables. FAST3D requires values in the reserved variables EQ, VPAR,
and PPAR.
valued function of two variables. FAST3D requires values in the reserved variables EQ, VPAR,
and PPAR.
VPAR is made up of the following elements:
{
{
x
left
,x
right
, y
near
, y
far
,z
low
,z
high
,x
min
,x
max
, y
min
, y
max
,x
eye
, y
eye
,z
eye
,x
step
, y
step
}
For plot type FAST3D, the elements of VPAR are used as follows:
•
x
left
and x
right
are real numbers that specify the width of the view space.
•
y
near
and y
far
are real numbers that specify the depth of the view space.