Changing the Calculation Mode

Table 1-1 Mode Menu Settings

Setting (top line)	Description

Actual or Cal.360	Calendar options for bonds and date calculations.
	Default is Actual.
	Pressing Itoggles between these options.

Annual or Semiannual	Bond type.
	Default is Annual.

Pressing Itoggles between these options.

TVM Standard or TVM Activate or deactivate the compounding per year (C/YR) option in time value of money

Canada	(TVM) calculations. This option is primarily used for Canadian mortgage calculations. See
	Chapter 4, Canadian Mortgages: TVM Canada for more information.
	Pressing Itoggles between these options.

After viewing the default settings, suppose you want to change the calculation mode from Chain to RPN. See Table 1-2.

Table 1-2 Changing the Calculation Mode

Keys	Display	Description

:u		Opens the Mode menu, starting with first setting
		Opens the Mode menu, starting with first setting
		option, FIX, the number of digits displayed to the
		right of the decimal point.

<<<

Scrolls to the current setting for the calculation mode, Chain.

(Press five times)

II		Selects RPN as the active setting. Note the RPN
II		annunciator to the right.
(Press two times)

Exits the Mode menu and returns you to the default calculator screen.

Key Presses, the Shift Key, Secondary, and Tertiary Functions*

To execute the function associated with a key, press and release the desired key. However, most of the calculators’ keys have more than one function: the first, or primary function, the shifted, or secondary function, and, in some cases, a third, or tertiary function (see Figure 2).

* Tertiary functions do not apply to the HP 20b.

4 Basic Features

30b Professional, 20b Consultant Financial 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.