Calculator Contents
HP Calculator Contents

The HP Financial Calculator provides several mathematical, financial, and conversion applications.

Introduction

Calculator Display

Using HP Calculator

Using the Applications

Arithmetic

Time Value of Money

Business

Solver

Conversion

Math

Reference

Keyboard Reference

Solver Function Reference

Menus

File

Edit

Clear

Application

Options

View

Help


File Menu

Use the File menu commands to manage equation files.

New

Creates a new equation file. The New File dialog appears. (Available only in the Solver Application.)

Open

Opens an existing equation file. The Open dialog appears. (Available only in the Solver Application.)

Save

Saves the current file. (Available only in the Solver Application.)

Save As

Saves the current equation file under a new name. The Save As dialog appears. (Available only in the Solver Application.)

Exit

Quits the calculator and saves the current data.


Open Dialog

Use the Open dialog to open an equation file.

File Name

Type the name of the file you want to open, or select the file from the file box.

List Files of Type

Use the pull-down list to select the types of files displayed in the file box.

Directories

Choose the directory that contains the file you want to open.

Drives

Use the pull-down list to select the drive that contains the file you want to open.


New File Dialog

Use the New File dialog to create a new equation file.

File Name

Type a name for the file, or select a file from the file box. If the file already exists, you will be asked if you want to replace the existing file.

Save File as Type

Use the pull-down list to select the types of files displayed in the file box.

Directories

Choose the directory where you want save the file.

Drives

Use the pull-down list to select the drive where you want to save the file.


Save As Dialog

Use the Save As dialog to save the current equation file with a new name.

File Name

Type a name for the file, or select a file from the file box. If the file already exists, you will be asked if you want to replace the existing file.

Save File as Type

Use the pull-down list to select the types of files displayed in the file box.

Directories

Choose the directory where you want to save the file.

Drives

Use the pull-down list to select the drive where you want to save the file.


Save (filename).EQN

The Solver equations have changed.

Choose Yes to save the changes.

Choose No to discard changes.


Edit Menu

Use Edit menu commands to edit equations and data.

Copy

Stores the current Calc line in the Clipboard.

Paste

Inserts the contents of the Clipboard on the Calc line.


Clear Menu

Use this menu to clear data from the calculator.

Data

Clears the data that's specific to the current application.

Stack

Clears the stack.

Registers

Clears the registers (0-9).

CalcLine

Clears the Calc line.


Application Menu

Use this menu to select a calculator application.

Arithmetic

Use the Arithmetic application to perform simple arithmetic calculations.

TVM

Use the TVM applications to calculate loan payments, interest rates, loan amortization, and investment returns.

Business

Use the Business application to calculate percent change, percent of total, markup, and margin.

Solver

Use the Solver application to solve your own custom equations for unknown variables.

Conversion

Use the Conversion applications to convert currency (Currency Conversion), and to convert length, area, volume, mass, and temperature (Conversion Applications).

Math

Use the Math application to perform advanced mathematical calculations (for example, trigonometry, factorials and permutations).


Options Menu

Use this menu to set operating preferences for the calculator.

Number Format

Specifies the format used to display numbers: Fixed, Scientific, Engineering, and All. Displays the Number Format dialog.

Degree

Selects degrees as the current angular unit.

Radians

Selects radians as the current angular unit.

Grads

Selects grads as the current angular unit.

RPN

Selects RPN mode.

Algebraic

Selects algebraic mode.


Number Format Dialog

Use this dialog to select the format used to display numbers.

Fixed point

Displays numbers using a fixed number of decimal places, specified by Decimal Places. For example, with 2 Decimal Places set, 65536 appears as 65536.00.

Scientific

Displays numbers in scientific notation, with a mantissa having the specified number of Decimal Places and an exponent. For example, with 4 Decimal Places set, 65536 appears as 6.5536e4.

Engineering

Displays numbers in engineering notation with the specified number of Digits. This is similar to scientific notation, except the exponent is always a multiple of 3. For example, with 4 Digits set, 65536 appears as 65.536e3.

All

Displays numbers with full precision (all significant digits). Numbers that are very large or very small are displayed in scientific notation. For example, 65536 appears as 65536.


View Menu

You can display either the Stack or the Registers.

Stack

Turns the stack display on and off (Arithmetic and Math applications only).

Registers

Turns the register display on and off (Arithmetic and Math applications only).


Help Menu

Use this menu to get help, or press F1.

Contents

Displays the Calculator Help Contents.

Keyboard

Displays the Keyboard Reference.

Solver Functions

Displays the Solver Function Reference.

About

Displays information about the calculator.


Calculator Display

The calculator display shows data for the current application and provides controls for using the application. The display includes these elements:

Menu Bar

Toolbar

Display area

Calc line

Functions keys

Status line

See Also

Using HP Calculator


Menu Bar

The menu bar lets you select menu options.


Toolbar

The 10 Toolbar buttons above the display area perform calculator operations. Use the mouse or keyboard short-cut to select a button.

Key	Label	Operation

C	0.00	Clears the Calc line.

S	STO	Stores a number to a register. Press S, then the register number (0 to 9).

R	RCL	Recalls a stored number. Press R, then the register number (0 to 9).

T	LAST	Recalls the last result to the Calc line.

V	Rolls down the stack (choose this four times to cycle through the entire stack).

N	+/-	Changes the sign of the number on the Calc line (positive/negative).

Z	Exchanges the Calc line number with the last result, or swaps two numbers around an operator.

X	1/x	Divides 1 by the number on the Calc line.

Q	Calculates the square root of the number on the Calc line.

Y	Raises the first number to the second-number power.


Display Area

The main window displays information about the application and its variables.


Calc Line

The Calc line displays numbers as they are entered, and displays calculation results.


Function Keys

The function keys provide special operations for the current application and change whenever you change applications.


Status Line

The status line near the bottom of the screen displays the current application, the entry mode, the selected angular units, and store and recall operations.


Using HP Calculator

To use the calculator buttons (Toolbar and F-keys):

-	Click the button with the mouse.

-or-

-	Press the button's short-cut key (displayed in the button's top-left corner).

To do algebraic (ALG) calculations:

1.	Type numbers, operators, parentheses, and functions in the order they appear in normal written form. Intermediate results appear as they are calculated.

2.	Press ENTER or = to calculate the final result.

Example: ( 5 + 3 ) * 2 ENTER calculates (5+3)x2.

To do arithmetic with a constant (in ALG):

1.	Type the constant's operator twice, then type the constant.

2.	For each calculation, type a number and press ENTER, or just press ENTER again to repeat the operation on the result.

3.	To clear the constant but not the result, press BACKSPACE.

Example: 3 * * 2 ENTER sets the constant to x2 and calculates 3x2. Pressing 5 ENTER calculates 5x2.

To do RPN calculations:

1.	Type the number (or numbers) that will be operated on (press ENTER to separate two successive numbers).

2.	Press the operator or function key to calculate the result.

Example: 5 ENTER 3 + 2 * calculates (5+3)x2.

To choose RPN mode, use the Options menu.

To use storage registers 0 through 9:

-	To store the Calc line number in a register, press STO, then the register key (0-9).

-	To recall a number from a register, press RCL, then the register key (0-9), or click the register in the display area.

-	To combine the Calc line number into a register, press STO, then an operator (+-*/), then the register key (0-9).

To clear data:

-	To clear the Calc line, choose 0.00 (Toolbar) or press DEL.

-	To clear the stack, choose Stack from the Clear menu.

-	To clear the registers, choose Registers from the Clear menu.

-	To clear special data for the current application, choose Data from the Clear menu.

To switch applications:

-	Use the Application menu or keyboard shortcut.

To set calculator operation:

-	Use the Options menu.


Math Functions

The Math application functions perform advanced mathematical calculations using the number in the Calc line. Choose More (F10 or SHIFT+F10) to change function sets.

Function set 1:

RND	F2	Rounds to the displayed number of decimal places. This has no effect if the Number format is set to All.

IP	F3	Integer part of a number.

FP	F4	Fractional part of a number.

ABS	F5	Absolute value of a number.

LN	F6	Natural logarithm of a number.

E^X	F7	Natural antilogarithm of a number.

LOG	F8	Base 10 logarithm of a number.

10^X	F9	Base 10 antilogarithm of a number.

Function set 2:

PI	F2	Recalls 3.141592653589793 to the Calc line.

SIN	F3	Sine of an angle (current angular units).

COS	F4	Cosine of an angle (current angular units).

TAN	F5	Tangent of an angle (current angular units).

ASIN	F6	Arc sine of an number (current angular units).

ACOS	F7	Arc cosine of a number (current angular units).

ATAN	F8	Arc tangent of a number (current angular units).

Function set 3:

DEG	F2	Converts from radians to decimal degrees.

RAD	F3	Converts from decimal degrees to radians.

HR	F4	Converts from hours/degrees-minutes-seconds to decimal hours/degrees.

HMS	F5	Converts from decimal hours/degrees to hours/degrees-minutes-seconds.

XCOORD	F6	Stores an x-coordinate, or calculates the x-coordinate when a radius and angle have been stored.

YCOORD	F7	Stores a y-coordinate, or calculates the y-coordinate when a radius and angle have been stored.

RADIUS	F8	Stores a radius, or calculates the radius when x- and y-coordinates have been stored.

ANGLE	F9	Stores an angle, or calculates the angle when x- and y-coordinates have been stored.

Function set 4:

X	F2	Stores x for Cx,y and Px,y.

Y	F3	Stores y for Cx,y and Px,y.

Cx,y	F4	Calculates combinations: the number of unique sets of y items that can be made from a group of x items.

Px,y	F5	Calculates permutations: the number of different arrangements of y items that can be made from a group of x items.

N!	F6	Factorial of an integer.

SEED	F7	Seeds the random number generator. If you enter a non-zero number, it's used as the seed. If you enter 0, a random number is used as the seed.

RAN#	F8	Generates a random number between 0 and 1.


Arithmetic

Arithmetic Operators:

+	add

-	subtract

*	multiply

/	divide

^	raise to power

%	percent

To use memory (M):

-	To store the Calc line in M, press F7 (->M).

-	To add the Calc line to the number in M, press F9 (M+).

-	To subtract the Calc line from the number in M, press F10 (M-).

-	To recall the number in M, press F8 (RM).

See Also

Using HP Calculator


Time Value of Money

To set up TVM conditions:

-	Type and store a value for P/YR.

-	Change the B/E option as needed (select whether payments occur at the beginning or end of the period).

To store a known value:

1.	Type or calculate the value.

2.	Press the variable's F-key.

To find a value:

1.	Store all the other known values.

2.	Press the unknown variable's F-key.

To recall a value:

-	Press RCL, then press the variable's F-key.

-or-

-	Click the variable in the display area.

To amortize the loan:

-	Press F9 (Amortization).

To convert types of interest rates:

-	Press F10 (Interest Conversions).

To switch between two cases:

-	Press RIGHT ARROW or LEFT ARROW.


TVM Amortization

To amortize a loan:

1.	In the TVM display, set up the loan, then press F9.

2.	Press F2 (GO) to amortize each group of payments.

3.	Optional: Press an F-key to recall its value.

To change the number of payments per group:

1.	Type the number of payments per group on the Calc line. (Type 1, to amortize a single payment).

2.	Press F2 (GO) to amortize the group.

To change values during the amortization:

-	Press F9 (Adjust).


TVM Adjust Amortization

To adjust values:

1.	Type or calculate the value.

2.	Press the variable's F-key.

3.	Press F10 (Amort) to continue amortizing.


TVM Interest Conversion

To convert one type of interest to all other types:

1.	Type or recall the first interest value.

2.	Press the F-key for the first type of interest. All equivalent results are displayed.

3.	Optional: Press an F-key to recall its value.

See Also:

TVM


Business

To store a known value:

1.	Type or calculate the value.

2.	Press the variable's F-key.

To solve a percent-change or percent-of-total problem:

1.	Store the two known values.

2.	Press the unknown variable's F-key.

To solve a markup or margin problem:

1.	Store the two known values. (Markup and Margin count as only one known variable.)

2.	Press the unknown variable's F-key.

To recall a value:

-	Press RCL, then the variable's F-key.

-or-

-	Click the variable in the display area.


Solver

The Solver displays a list of equations you've entered, and which you can solve.

See Solver Function Index for a list of functions you can use in Solver equations.

To select an equation:

-	Press UP ARROW or DOWN ARROW.

To enter an equation:

1.	Select the line where you want to add the new equation. (The selected equation will move down.)

2.	Press F3 to get the Edit Equation dialog box.

To edit an equation:

1.	Select the equation.

2.	Press F2 to get the Edit Equation dialog box.

To solve an equation:

1.	Select the equation.

2.	Press F9 (Calc).

To work with sets of equations:

-	To save a set, use the File menu Save command (or Save As command). Equations are automatically saved when you open another set, or exit.

-	To recall a set, use the File menu Open command.

-	To start a new set, use the File menu New command.


Solver Calc

Each variable in the equation appears on an F-key.

To store a known value:

1.	Type or calculate the value.

2.	Press the variable's F-key.

To find a value:

1.	Store all the other known values.

2.	Optional: Type a guess for the unknown variable and then press its F-key. Type a second guess and press the F-key.

3.	Press the unknown variable's F-key.

To recall a value:

-	Press RCL, then the variable's F-key.

-or-

-	Click the variable in the display area.

See Also

Solver


Equation

An algebraic expression containing numbers, variables, operators, parentheses, and functions. It doesn't require an equals sign (=).

Functions are listed in the Solver Function Reference.


Variable

A name for a quantity in an equation, either known or unknown. For example, MINS and HOURS are variables in the equation MINS=60*HOURS. If a variable is used in more than one equation, its current value carries forward to the next equation that uses it.


Guess

An upper or lower limit for an unknown variable. The Solver may search for a solution based upon the two guesses. Guesses helps find a solution if the Solver has difficulty finding one, and it helps find a particular solution if there are multiple solutions.


Edit Equation Dialog

Equation

Type or edit the equation. You can include numbers, variables, operators, parentheses, and functions. You can include spaces and new lines for readability. You can have up to 255 variables and 3000 characters in an equation.

Name

Type or edit the descriptive name (up to 15 characters). You can include spaces.

See Also

Solver Function Reference


Delete Equation Dialog

Use this dialog to delete an equation or its variable values. Equations and variables take up disk space.

Equation

Deletes the equation, but not its variable values. (Other equations can use the values.)

Variables

Deletes the variable values for the equation.

Both

Deletes the equation and its variable values.


Conversion Applications

Use the Conversion applications to convert Currency, Length, Area, Volume, Mass, and Temperature.

To convert units:

1.	Type or calculate the value in one unit of measure.

2.	Press the F-key for the unit. All equivalent results are displayed.

3.	Optional: Press an F-key to recall the value in that unit.

See Also

Currency Conversion


Currency Conversion

To convert currencies:

1.	Type or calculate the value in one currency.

2.	Press the F-key for the currency.

All equivalent results are displayed.

3.	Optional: Press an F-key to recall the value in that currency.

To update currency conversion rates:

1.	Display the page containing the currency you want to update.

2.	Press F2 to get the Edit Currency dialog box.


Edit Currency Dialog Box

Name

Type or edit the currency name.

Conversion Rate

Type or edit the conversion rate (you can't use exponential form). The rate is relative to the reference currency (with value=1.00). You can set any currency rate to 1.00 and set all others relative to that one.

Next Item

Steps to the next currency, and discards any changes you made to the displayed currency.


Math

The Math Functions perform advanced mathematical calculations.

To use the Math functions:

1.	Type or calculate the argument.

2.	Press the F-key for the function.

To use a group of functions:

1.	Type or calculate each known value, then press the variable's F-key.

2.	Press the unknown variable's F-key.

These are function groups:

-	Xcoord	Ycoord	Radius	Angle

Store values for Xcoord and Ycoord, then press Radius or Angle to find that value.

Store values for Radius and Angle, then press Xcoord or Ycoord to find that value.

-	X	Y	Cx,y	Px,y

Store values for X and Y, then press Cx,y or Px,y to find that value.

See Also

Using HP Calculator


Solver Function Reference

You can type any of the following functions in the Edit Equation dialog box:

ABS(x)	Absolute value of x.

ACOS(x)	Arc cosine of x.

ALOG(x)	Base 10 antilogarithm of x (10^x).

ANGLE(x,y)	Polar coordinate angle equivalent of the given rectangular coordinates.

ASIN(x)	Arc sine of x.

ATAN(x)	Arc tangent of x.

CDATE	Current date given in the form MM.DDYYYY.

COMB(x,y)	Combinations of x items taken y at a time.

COS(x)	Cosine of x.

CTIME	Current time given in the form HH.MMSS.

DATE(date,n)	If n is positive, returns the date n days after date. If n is negative, returns the date n days before date.

DDAYS(d1,d2,cal)	Days between d1 and d2, using calendar type cal (1 is actual, 2 ignores leap years, and 3 uses 30-day months); d1 and d2 must be in the form MM.DDYYYY.

DEG(x)	Converts x radians to degrees.

EXP(x)	Natural antilogarithm of x (e^x).

EXPM1(x)	Natural antilogarithm of x minus 1 (EXP(x)-1).

FACT(x)	Factorial of x; x must be a whole number.

FP(x)	Fractional part of x.

FV(n,i%yr,pv,pmt,p/yr,m)	TVM function for FV.

HMS(x)	Converts decimal hours to HMS.

HR(x)	Converts HMS to decimal hours.

IDIV(x,y)	Integer part of x divided by y.

IF(cond,ifTrue,ifFalse)	Conditional expression (use >, <, =, >=, <=, <>, NOT, AND, OR, XOR in conditional expression); calculates and returns ifTrue if the condition is true, ifFalse if the condition is false.

INT(x)	Greatest integer equal to or less than x.

INV(x)	1/x.

IP(x)	Integer part of x.

I%YR(n,pv,pmt,fv,p/yr,m)	TVM function for I%YR.

LN(x)	Natural (base e) log of x.

LNP1(x)	Natural (base e) log of 1+x.

LOG(x)	Common (base 10) log of x.

MAX(x,y)	Larger of x and y.

MIN(x,y)	Smaller of x and y.

MOD(x,y)	Remainder of x divided by y.

N(i%yr,pv,pmt,fv,p/yr,m)	TVM function for N.

PERM(x,y)	Permutations of x items taken y at a time.

PI	3.141592653589793.

PMT(n,i%yr,pv,fv,p/yr,m)	TVM function for PMT.

PV(n,i%yr,pmt,fv,p/yr,m)	TVM function for PV.

RAD(x)	Converts x degrees to radians.

RADIUS(x,y)	Polar radius equivalent of the given rectangular coordinates x and y.

RAN# or RAND	Generates a pseudo-random number between 0 and 1.

RND(x,y)	Rounds x to y places or digits.

SGN(x)	Returns 1 if x is positive, 0 if x is 0, and -1 if x is negative.

SIN(x)	Sine of x.

SPFV(i%,n)	Future value of single $1.00 payment.

SPPV(i%,n)	Present value of single $1.00 payment.

SQ(x)	x squared.

SQRT(x)	Square root of x.

TAN(x)	Tangent of x.

TRN(x,y)	Truncates x to y places or digits.

USFV(i%,n)	Future value of uniform series of $1.00 payments.

USPV(i%,n)	Present value of uniform series of $1.00 payments.

XCOORD(R,angle)	The X-coordinate equivalent of the given polar coordinates.

YCOORD(R,angle)	The Y-coordinate equivalent of the given polar coordinates.


Keyboard Reference

Calc line

Exponent notation	E

Clear	DEL or C

Edit or clear	BACKSPACE

Copy	CTRL+C

Paste	CTRL+V

Numeric keypad	NM LK

Applications

Arithmetic	CTRL+R

TVM	CTRL+T

Business	CTRL+B

Solver	CTRL+S

Math	CTRL+A

Switch cases (TVM)	RIGHT or LEFT ARROW

Exit	ALT+F4

Note:	You can use Copy, Paste, and Cut (CTRL+X) in dialog boxes.


Delete All Equations

Clear Data in the Solver application deletes all equations in the current catalog.

Choose OK to delete the equations.

Choose Cancel to keep the equations.


RPN Mode

A parentheses-free mathematical logic that places operators and functions (+, - , etc.) after the operands (numbers or variables).


Algebraic Mode

A mathematical logic that places operators between numbers and variables, functions after the operands, and uses parentheses to group calculations.


Stack

The Calc line and three additional registers that hold the four most recent results.


Register

A memory storage location where you can store, recall, and accumulate numbers. The registers are numbered 0 through 9.


Equation Files

The calculator can save a catalog of equations from the Solver application. The file names have a .EQN extension.