PERTBL

Type:

Command

 

 

 

 

 

 

Description:

Starts the Periodic Table. It doesn’t affect the stack.

 

 

 

 

Access:

GPERIODIC TABLE

PERTBL

 

 

 

 

 

Flags:

Units Usage (61), Units Type (60)

 

 

 

 

Input/Output:

None

 

 

 

 

 

 

See also:

MOLWT, PERINFO, PTPROP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PEVAL

Command

 

 

 

 

 

 

Type:

 

 

 

 

 

 

Description:

Polynomial Evaluation Command: Evaluates an n-degree polynomial at x.

 

 

The arguments must be an array of length n+1 containing the polynomial’s coefficients listed

 

from highest order to lowest, and the value x at which the polynomial is to be evaluated.

 

Access:

…µPEVAL

 

 

 

 

 

 

Input/Output:

 

 

 

 

 

 

 

 

 

 

Level 2/Argument 1

Level 1/Argument 2

 

 

Level 1/Item 1

 

 

 

 

 

 

 

 

 

 

 

[ array ]coefficients

x

 

p(x)

 

 

 

 

 

 

 

Example:

Find the polynomial x4 + 2x3 - 25x2 - 26x + 120 at x = 8:

 

 

 

Command:

[ 1 2 –25 –26 120 ] 8 PEVAL

 

 

 

 

Result:

3432

 

 

 

 

 

 

 

See also:

PCOEF, PROOT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PGDIR

Command

 

 

 

 

 

 

Type:

 

 

 

 

 

 

Description:

Purge Directory Command: Purges the named directory (whether empty or not).

 

Access:

MEMORY DIRECTORY PGDIR( °is the left-shift of the Nkey).

 

Input/Output:

 

 

 

 

 

 

 

 

 

 

 

Level 1/Argument 1

 

 

Level 1/Item 1

 

 

 

 

 

 

 

 

 

 

 

 

'global'

 

 

 

 

 

 

 

 

 

See also:

CLVAR, CRDIR, HOME, PATH, PURGE, UPDIR

 

 

 

 

 

 

 

 

 

 

 

 

PICK

RPL Command

 

 

 

 

 

 

Type:

 

 

 

 

 

 

Description:

Pick Object Command: Copies the contents of a specified stack level to level 1.

 

Access:

STACK PICK

 

( °is the left-shift of the Nkey).

 

Input/Output:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ln+1...

L2

L1

 

Ln+1

L2

L1

 

 

 

 

 

 

 

 

 

 

 

objn ...

obj1

n

objn ...

obj1

obji

 

 

 

 

 

 

 

 

 

 

 

 

 

L = Level

 

 

 

 

See also:

DUP, DUPN, DUP2, OVER, ROLL, ROLLD, ROT, SWAP

 

 

 

 

 

 

 

 

 

 

 

PICK3

RPL Command

 

 

 

 

 

 

Type:

 

 

 

 

 

 

Description:

Duplicates the object on level 3 of the stack.

 

 

 

 

Access:

STACK LPICK3

( °is the left-shift of the Nkey).

 

3-168 Full Command and Function Reference