Basic Calculations⁚ The HP 35s is designed for a wide range of mathematical operations. Let’s start with basic calculations⁚

• Addition (+)⁚ Enter the first number, press the + key, enter the second number, and press the = key. The result will be displayed.
• Subtraction (-)⁚ Enter the first number, press the – key, enter the second number, and press the = key. The result will be displayed.
• Multiplication ()⁚ Enter the first number, press the key, enter the second number, and press the = key. The result will be displayed.
• Division (/): Enter the first number, press the / key, enter the second number, and press the = key. The result will be displayed.

These basic operations will form the foundation for more complex calculations you’ll explore in the following sections. Keep in mind that the HP 35s follows the standard order of operations (PEMDAS/BODMAS), ensuring calculations are performed in the correct sequence.

Turning On and Off the Calculator

Before you can start exploring the capabilities of your HP 35s, you need to power it up. Turning on and off the calculator is a simple process, but understanding the correct keys is crucial. Here’s a step-by-step guide to getting your calculator ready for action⁚

Turning On⁚ To bring your HP 35s to life, press and release the ON key. This key is located on the lower part of the key, and it’s marked in blue. Once you press it, the calculator’s display will illuminate, indicating it’s ready for use.

Turning Off⁚ To shut down your HP 35s, simply press the z key. This will switch off the display and power down the calculator, conserving battery life.

Now that you’ve mastered the basics of powering your calculator on and off, you’re ready to move on to the exciting world of calculations! The next section will guide you through the fundamentals of performing basic mathematical operations, setting the stage for more advanced functionalities.

Basic Calculations

The HP 35s is designed to handle a wide range of calculations, from simple arithmetic to more complex scientific operations. Let’s start with the basics, exploring how to perform fundamental calculations like addition, subtraction, multiplication, and division.

Addition and Subtraction⁚ To add or subtract numbers, simply enter the first number, followed by the appropriate operation symbol (+ for addition, — for subtraction), and then the second number. Press the key to get the result.

Multiplication and Division⁚ For multiplication, use the key. For division, use the key. Enter the numbers and operator in the same order as with addition and subtraction, and press to get the answer.

Order of Operations⁚ The HP 35s follows the standard order of operations (PEMDAS/BODMAS), meaning that operations within parentheses are performed first, followed by exponents, multiplication and division (from left to right), and lastly addition and subtraction (from left to right).

Example⁚ To calculate 5 + (2 x 3) — 4, you would enter the following sequence⁚ 5 + ( 2 x 3 ) ⎼ 4 . The calculator will automatically follow the order of operations and display the correct result, which is 7.

With these basic calculations under your belt, you’re ready to tackle more complex operations. The next section will delve into the world of advanced features, unlocking the true potential of your HP 35s.

Advanced Features

Beyond the basic calculations, the HP 35s unlocks a world of advanced features designed to tackle complex mathematical problems. This section explores some of the key functionalities that set the HP 35s apart, empowering you to tackle a wide range of scientific and engineering challenges.

Integration⁚ The HP 35s boasts a powerful numerical integrator, allowing you to calculate definite integrals. This function is essential for a variety of applications, including finding areas under curves, calculating volumes of solids of revolution, and solving differential equations. To access the integration function, press the key followed by the key. The calculator will then guide you through the process of defining the integral and providing the necessary limits of integration.

Programming⁚ The HP 35s supports a limited form of programming, enabling you to create custom routines for repetitive calculations or complex algorithms. This allows you to automate tasks and streamline your workflow. Programming on the HP 35s utilizes a stack-based approach, where data is stored and manipulated on a stack. The calculator provides a set of programming commands and functions, which you can combine to create your own programs.

Trigonometric Functions⁚ The HP 35s offers a full complement of trigonometric functions, including sine, cosine, tangent, and their inverses. These functions are invaluable for working with angles, triangles, and periodic phenomena. To access these functions, press the key followed by the appropriate trigonometric function. The calculator will then prompt you to enter the angle in degrees or radians, depending on the mode setting.

These advanced features make the HP 35s a versatile tool for a wide range of applications, from solving complex engineering problems to exploring advanced mathematical concepts.

Integration

The HP 35s is equipped with a robust numerical integrator, a powerful tool for calculating definite integrals. This function is invaluable for a variety of applications, including finding areas under curves, calculating volumes of solids of revolution, and solving differential equations. The numerical integration capability allows you to approximate the definite integral of a function over a specified interval.

To access the integration function, press the key followed by the key. The calculator will then guide you through the process of defining the integral and providing the necessary limits of integration. You’ll be prompted to enter the function, the lower limit of integration, and the upper limit of integration. The HP 35s will then perform the numerical integration and display the result.

The HP 35s uses a numerical integration algorithm to approximate the definite integral. This means that the calculator does not calculate the exact value of the integral but rather an approximation based on a series of calculations. The accuracy of the approximation depends on the complexity of the function and the chosen integration method. The HP 35s provides a range of integration methods, allowing you to choose the most appropriate method for your specific application.

The numerical integrator on the HP 35s is a valuable tool for solving a wide range of problems in various fields. Its user-friendly interface and robust algorithm make it a powerful resource for students, engineers, and scientists alike.

Programming

The HP 35s offers a powerful programming capability, allowing you to create custom programs to automate repetitive calculations or solve complex problems. This feature opens up a world of possibilities, enabling you to tailor the calculator to your specific needs. The calculator’s programming language is based on a stack-based architecture, where data is stored and manipulated on a stack. This provides a flexible and efficient way to write programs.

The programming environment is accessed through the key, which opens up a dedicated programming mode. Within this mode, you can enter program instructions using a combination of keys and menus. The calculator has a built-in editor that allows you to create, edit, and store programs. The HP 35s supports a variety of programming constructs, including conditional statements, loops, and function calls. You can also use variables to store data and manipulate it within your programs.

The programming capability of the HP 35s extends its functionality beyond basic calculations. It allows you to create specialized programs for specific applications, such as solving equations, performing statistical analyses, or even creating games. The programming language is relatively easy to learn, and the calculator’s comprehensive documentation provides detailed instructions and examples.

By mastering the programming capabilities of the HP 35s, you can unlock a new level of power and versatility, making the calculator a truly indispensable tool for your mathematical and scientific endeavors.

Troubleshooting

While the HP 35s is a reliable and robust calculator, there might be instances where you encounter issues. This section will guide you through common problems and provide solutions to help you get back on track. One common issue is the calculator displaying an error message. These messages often indicate a problem with the input, such as a syntax error or an attempt to divide by zero. Review the input carefully and ensure that it is entered correctly.

If the calculator is not responding or behaving erratically, try resetting it by pressing and holding the key for a few seconds. This will clear the memory and restore the calculator to its default settings. If you are experiencing a problem with a specific function, consult the relevant section in the manual for troubleshooting tips.

The HP 35s also has a built-in diagnostic mode, accessible by pressing a specific key combination. This mode allows you to run self-tests to identify any hardware issues. The results of the tests will provide valuable information that can be used to troubleshoot the problem.

If you are unable to resolve the issue yourself, you may need to contact HP support for assistance. They can provide more specialized troubleshooting guidance or, if necessary, arrange for repair or replacement of the calculator.

Manual Conventions

To ensure clarity and ease of understanding, this manual employs specific conventions to represent the calculator’s keys and functions. Key names are displayed in boldface, while functions are presented in a clear and concise manner. For instance, the “ON” key is represented as ON, while the “sin” function is written as “sin”.

To illustrate the steps involved in using the calculator, images of the keys are included along with the corresponding descriptions. This visual representation aids in understanding the operations and simplifies the learning process. To differentiate between different types of input, the manual utilizes specific symbols. For example, numbers entered into the calculator are displayed in plain text, while variables are shown in italics.

The manual also employs a consistent layout and structure to facilitate navigation and information retrieval. Each section is clearly labeled, and headings are used to organize the content. The use of subheadings, bullet points, and numbered lists enhances readability and helps to highlight key information.

By adhering to these conventions, this manual aims to provide a clear, comprehensive, and user-friendly guide to the HP 35s calculator.