PX→C

Type:

Command

 

 

Description:

Pixel to Complex Command: Converts the specified pixel coordinates to user-unit coordinates.

 

The user-unit coordinates are derived from the (xmin, ymin) and (xmax, ymax) parameters in the

 

reserved variable PPAR. The coordinates correspond to the geometrical center of the pixel.

Access:

!°LPICT LPX→C

( °is the left-shift of the Nkey).

Input/Output:

 

 

 

 

 

 

 

 

 

 

Level 1/Argument 1

Level 1/Item 1

 

 

 

 

 

 

 

{ #n #m }

→

(x,y)

See also:

C→PX

 

 

 

 

 

 

 

 

 

 

 

→Q

Command

 

 

Type:

 

 

Description:

To Quotient Command: Returns a rational form of the argument.

 

The rational result is a “best guess”, since there might be more than one rational expression consistent with the argument. →Q finds a quotient of integers that agrees with the argument to within the number of decimal places specified by the display format mode.

→Q also acts on numbers that are part of algebraic expressions or equations. Access: „Ú REWRITE L→Q (Ú is the left-shift of the 6key).

Flags:

Number Display Format (–45 to –50)

 

 

Input/Output:

 

 

 

 

 

 

Level 1/Argument 1

 

Level 1/Item 1

 

 

 

 

 

 

 

x

→

'a/b'

 

 

(x,y)

→

'a/b + c/d*i'

 

 

'symb1'

→

'symb2'

Example:

'Y+2.5'

→Q returns 'Y+5/2'

 

 

See also:

→Qπ, /, XQ

 

 

 

 

 

 

 

→Qπ

Command

 

 

Type:

 

 

Description:

To Quotient Times π Command: Returns a rational form of the argument, or a rational form of

 

the argument with π, square roots, natural logs, and exponentials factored out, whichever yields

 

the smaller denominator.

 

 

 

The rational result is a “best guess”, since there might be more than one rational expression

 

consistent with the argument. →Qπ finds a quotient of integers that agrees with the argument to

 

the number of decimal places specified by the display format mode.

 

 

→Qπ also acts on numbers that are part of algebraic expressions or equations.

 

For a complex argument, the real or imaginary part (or both) can have π as a factor.

Access:

„Ú REWRITE L →Qπ

(Ú is the left-shift of the 6key).

Flags:

Number Display Format (–45 to –50)

 

 

Full Command and Function Reference 3-187