Reference Guide

Full Command and Function Reference 3-49
Access: !´ VECTOR L CYLIN ( ´ is the left-shift of the Pkey).
Input/Output: None
See also: RECT, SPHERE
C → PX
Type: Command
Description: Complex to Pixel Command: Converts the specified user-unit coordinates to pixel coordinates.
The user-unit coordinates are derived from the (x
min
, y
min
) and (x
max
, y
max
) parameters in the
reserved variable PPAR.
Access: !°L PICT L C → PX ( °is the left-shift of the Nkey).
Input/Output:
Level 1/Argument 1 Level 1/Item 1
(x, y)
→
{ #n, #m }
See also: PX→C
C → R
Type: Command
Description: Complex to Real Command: Separates the real and imaginary parts of a complex number or
complex array. The result in item 1/level 2 represents the real part of the complex argument. The
result in item 2/ level 1 represents the imaginary part of the complex argument.
Access: !° TYPE L C → R ( °is the left-shift of the Nkey).
Input/Output:
Level 1/Argument 1 Level 2/Item 1 Level 1/Item 2
(x, y)
→
x y
[ C-array ]
→
[R-array ]
1
[R-array ]
2
See also: R→C, RE, IM
DARCY
Type: Function
Description: Darcy Friction Factor Function: Calculates the Darcy friction factor of certain fluid flows.
DARCY calculates the Fanning friction factor and multiplies it by 4. x
e/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
e/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 DARCY
Input/Output:
Level 2/Argument 1 Level 1/Argument 2 Level 1/Item 1
x
e
/ D y
Re
→
x
Darcy
See also: FANNING
DATE
Type: Command
Description: Date Command: Returns the system date.
Access: …Ó TOOLS DATE (Ó is the right-shift of the 9 key).
…&9 DATE