•ptype is a command name specifying the plot type. Executing the command SCATTER places the name SCATTER in ptype.

•depend is a name specifying the dependent variable. The default value is Y.

Access: …µSCATTER

Input/Output: None

See also: BAR, CONIC, DIFFEQ, FUNCTION, GRIDMAP, HISTOGRAM, PARAMETRIC, PARSURFACE, PCONTOUR, POLAR, SLOPEFIELD, TRUTH, WIREFRAME, YSLICE

SCHUR

Type: Command

Description: Schur Decomposition of a Square Matrix Command: Returns the Schur decomposition of a square matrix. SCHUR decomposes A into two matrices Q and T:

•If A is a complex matrix, Q is a unitary matrix, and T is an upper-triangular matrix.

•If A is a real matrix, Q is an orthogonal matrix, and T is an upper quasi-triangular matrix (T is upper block triangular with 1 × 1 or 2 × 2 diagonal blocks where the 2 × 2 blocks have complex conjugate eigenvalues).

 

In either case, A ≅ Q × T × TRN(Q)

 

 

 

Access:

!Ø FACTORIZATION SCHUR

 

( Ø is the left-shift of the 5key).

 

!´MATRIX FACTORS SCHUR

 

( ´is the left-shift of the Pkey).

Input/Output:

 

 

 

 

 

 

 

Level 1/Argument 1

 

Level 2/Item 1

Level 1/Item 2

 

 

 

 

 

 

 

 

[[ matrix ]]A

→

[[ matrix ]]Q

[[ matrix ]]T

 

 

 

 

 

 

See also:

LQ, LU, QR, SVD, SVL, TRN

 

 

 

SCI

Command

 

 

 

Type:

 

 

 

Description:

Scientific Mode Command: Sets the number display format to scientific mode, which displays one

 

digit to the left of the fraction mark and n significant digits to the right.

 

 

Scientific mode is equivalent to scientific notation using n + 1 significant digits, where 0 ≤ n ≤ 11.

 

(Values for n outside this range are rounded to the nearest integer.) In scientific mode, numbers

 

are displayed and printed like this:

 

 

 

 

 

(sign) mantissa E (sign) exponent

 

 

where the mantissa has the form n.(n … ) and has zero to 11 decimal places, and the exponent has

 

one to three digits.

 

 

 

Access:

„& HFMT SCI

 

 

 

 

„°LMODES FMT SCI

 

( °is the left-shift of the Nkey).

Input/Output:

 

 

 

 

 

 

 

Level 1/Argument 1

 

Level 1/Item 1

 

 

 

 

 

 

 

 

n

 

→

 

 

The number

 

Example:

103.6 in Scientific mode to four decimal places appears as 1.0360E2.

See also:

ENG, FIX, STD

 

 

 

 

 

 

 

 

 

SCLΣ

Command

 

 

 

Type:

 

 

 

Description:

Scale Sigma Command: Adjusts (xmin, y min) and (xmax, ymax) in PPAR so that a subsequent scatter

 

plot exactly fills PICT.

 

 

 

 

When the plot type is SCATTER, the command AUTO incorporates the functions of SCLΣ. In

addition, the command SCATRPLOT automatically executes AUTO to achieve the same result. SCLΣ is included for compatibility with the HP 28.

3-218 Full Command and Function Reference