HP 30b Professional Equals Key, On Key, Two Line Display, Number on the stack or duplicate it

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a number on the stack or duplicate it.

The Equals Key

The Equals key,=, is used at the end of a mathematical operation to cal-

culate the final result. For example, pressing 1+2= in Alge-

braic mode returns a final result of 3.

The =key, when pressed outside of a mathematical operation, also allows you to request a calculation for the value of an item. This request only applies to items that can be calculated.

The On Key

Pressing the On key,O, one time cancels current number entries, mathematical operations, or a menu selection, in that order.

Pressing Orepeatedly when performing multiple operations cancels one

operation at a time, from the latest to the earliest. For information on resetting the calculator with the Reset menu, refer to the section below titled, The Reset Menu.

Two Line Display

There are two lines in the display screen as shown in Figure 2.

Figure 2 Display Screen

Getting Started

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Contents Edition HP Part Number NW238-90201 HP 30b Business Professional Quick Start GuidePrinting History Legal NoticesIii HP 30b Business ProfessionalKeyboard Map Legend Table of Contents Page Getting Started Getting StartedShift key symbol Shift KeyInput Key On Key Equals KeyTwo Line Display Number on the stack or duplicate itCustomizing the Calculator Settings for 10 and 11 are not available using this Right of the decimal point. Default isCustomizing the Calculator Display Description Function Display precision the number of digits displayed toWeek are displayed only if the date is valid Monday is 1, and Sunday isIcycles through these options Algebraic Mode, and Chain Mode below. PressingMenus, Menu Items, and Assigning Values to Menu Items Page Reset Menu Memory and the Memory Menu Page Page Keys Used to Manipulate the RPN Stack Algebraic ModeKeys and Functions Sets Begin mode Beg. Payments occur at the beginningCompounding periods per year C/YR First periodPeriod FV always occurs at the end of the last compoundingCompounding period Amortization. The Amortization menu calculations areSecond date given a number of days from an initial, or Final dateSimultaneously Page Cursor, starting with the most recently entered number Reset menu. Resets some, or all, of the registersInsert. Inserts a number into a list Delete. Deletes a number from a listCalculates y to the x power Calculates factorial of x where -253 x ≤ 253 .Range 0 x Negative numbersClears TVM register Getting Started Basic Financial Calculation Example360N 1250 Limited Hardware Warranty Period General Terms Warranty and Contact Information Replacing the BatteriesExclusions Customer Care Country Hotline Phone 800-100-193 01 4993 Martinica 800-990-011 Mauritius 0800980410 Getting Started Getting Started Getting Started Getting Started

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30b Professional specifications

The HP 30b Professional calculator is a versatile tool designed specifically for business professionals, engineers, and educators. This reliable calculator merges advanced technologies with user-friendly features, enabling users to perform complex calculations with ease. The HP 30b is appreciated for its robust design and functionality, making it a top choice among those who require a dependable calculating device for various applications.

One of the standout features of the HP 30b is its capability to handle both RPN (Reverse Polish Notation) and algebraic entry modes. This flexibility allows users to choose the input method that best suits their preferences, enhancing productivity and minimizing calculation errors. The calculator also boasts a large, high-resolution display that ensures clarity when navigating through calculations and results.

The HP 30b comes equipped with essential business functions that include financial calculations, cash flow analysis, and statistical functions, all of which are invaluable in professional settings. Users can seamlessly compute interest rates, perform amortization schedules, and evaluate loan payments, making it an indispensable asset for finance-oriented individuals.

Another key characteristic is its programmable functionality. The HP 30b allows users to create custom programs tailored to specific tasks, which can save time and reduce manual entry errors. This programmable capability is especially beneficial for repetitive calculations, providing a significant efficiency boost in ambiguous or multi-step operations.

The durable construction of the HP 30b ensures longevity while the compact design makes it portable and convenient for on-the-go calculations. Additionally, the calculator features an energy-efficient design, which includes a long-lasting battery life, reducing the need for frequent replacements.

With a straightforward key layout and intuitive interface, the HP 30b is designed with user experience in mind. Whether in a classroom, office, or fieldwork scenario, users can easily navigate functions and access the features they need quickly. The HP 30b Professional calculator is truly an impressive blend of technology and practicality, making it an essential tool for anyone needing reliable performance in their daily calculations.