How to Put Arcsin in the Calculator

If you’ve ever grappled with trigonometry, chances are you’ve encountered the term ‘arcsin’. Short for ‘arc sine’, it’s the inverse function of sine and plays a fundamental role in solving trigonometric equations. But how do you handle this function when faced with a calculator in hand? Calculators vary in complexity and capability, yet mastering the use of arcsin on these devices is essential for students, professionals, and anyone with a keen interest in mathematics. This guide offers a compendium of methods to help you effortlessly input arcsin into different kinds of calculators, combined with tips to enhance your understanding and efficiency.

how to put arcsin in the calculator

Using a Scientific Calculator

Scientific calculators are staple learning tools for students and professionals alike. They excel in computing complex functions, including trigonometric ones like arcsin.

  • Enter the angle value for which you need to find the arcsin.
  • Locate the ‘sin’ or ‘arcsin’ button on your calculator. This is often a second function of the ‘sin’ button.
  • If it’s a second function, press the “Shift” or “2nd” button first, then the ‘sin’ button.
  • Your calculator should now display ‘sin(’ or ‘arcsin(’.
  • Input the angle value again, if it didn’t carry over automatically.
  • Press the ‘equals’ or ‘Enter’ button to get your result.

The primary benefit of using a scientific calculator is its accuracy and reliability. Its possible downside might be the initial complexity in understanding the various functions, especially for first-time users.

Through a Graphing Calculator

Graphing calculators offer a more advanced interface for tackling math problems. They can plot graphs, solve equations, and perform statistical analysis.

  • Power on your graphing calculator.
  • Access the function entry screen, commonly by pressing the ‘FUNC’ button.
  • Type in the arcsin function, which could be under ‘sin’ or ‘arcsin’.
  • Input your angle value.
  • Press ‘Enter’ to see the result displayed on the screen.

Graphing calculators allow for visual learning and comprehensive mathematical analysis. Their downside might be their cost and a steeper learning curve compared to simpler calculators.

Utilizing an Online Calculator

Online calculators are accessible and convenient options, especially when you do not have a physical calculator at the ready.

  • Open a web browser and search for an online scientific calculator.
  • Once you find one, simply click on the ‘arcsin’ or ‘sin’ button on the screen.
  • Enter the numerical value for which you want the arcsin.
  • Click ‘equals’ or ‘calculate’ to view your result.

This method’s benefit is its accessibility; you just need an internet connection. However, the precision and features may not be as advanced as those found on dedicated calculators.

Mobile Calculator Apps

Smartphone apps expand the functionality of your device by turning it into a portable calculator capable of computing arcsin.

  • Download and install a scientific calculator app from your smartphone’s app store.
  • Open the app and locate the ‘arcsin’ or ‘sin’ function.
  • Enter the number for the arcsin calculation.
  • Tap ‘equals’ or ‘Enter’ to view the answer.

The advantage here is portability; you carry a scientific calculator wherever you go. The disadvantage is the reliance on your device’s battery life and screen size, which may affect usability.

Physical Calculator User Guide

Every physical calculator comes with a user guide or manual that includes instructions for its various functions.

  • Locate the user manual for your calculator.
  • Look up the section on trigonometric functions.
  • Follow the listed instructions for entering the arcsin function.

The upside to this method is the manual’s tailored instructions for your specific calculator model. The downside is that it might not always be immediately at hand.

Office Software Functions

Programs like Microsoft Excel contain functions that can calculate arcsin, useful for those already working within such software.

  • Open your Excel program.
  • Click on an empty cell.
  • Type ‘=ASIN(number)’, replace ‘number’ with your angle value.
  • Press enter to get the result, which will be in radians. Use ‘=DEGREES(result)’ to convert it to degrees if needed.

The benefit of this method is the integration with data and formulas within the software. A downside might be the necessity to understand additional functions to convert and use the results effectively.

Classroom Settings

When in a classroom setting, the approach to finding arcsin might be guided by the teaching methodology.

  • Pay attention to the instructor’s demonstrations.
  • Practice using the calculators provided in the class.
  • Ask questions if the steps are unclear.

Learning in a classroom offers a supportive environment to understand complex functions. However, individual attention might be limited due to the size of the class.

Math Tutor or Study Group

Consider seeking additional help if self-study proves challenging.

  • Join a study group and collectively learn how to input arcsin in calculators.
  • Engage a math tutor for one-on-one assistance.

The advantage here is personalized learning, though it may involve additional financial costs or depend on the group’s availability.

Practice and Repetition

Like any new skill, mastering the arcsin function on a calculator requires practice.

  • Commit to regular practice sessions.
  • Use different types of calculators to become well-versed with each.

The advantage of practice is improved proficiency and confidence. The downside is that it requires time and commitment.

Watching Educational Videos

Multiple online platforms provide visual learning opportunities through educational videos which can help you understand how to use the arcsin function.

  • Search for tutorials on platforms like YouTube.
  • Follow along with the presented examples.

Videos offer a visual and auditory learning avenue, greatly benefiting those who struggle with traditional instruction manuals. A potential drawback is the variable quality and clarity of these online resources.

In a world where digital technology is at our fingertips, tapping into that power for mathematical calculations can simplify complex processes like finding arcsin values. From the direct approach with scientific calculators to the sophisticated use of graphing tools and online resources, there’s a solution that fits everyone’s comfort level and need. Remember, while technology is an incredible aid, nothing substitutes the robust understanding gained through practice and repetition.


Unlocking the potential of your calculator to solve for arcsin doesn’t have to be daunting. By following the methods outlined above, you’ll find that what once seemed like a complex equation is now achievable with just a few button presses. Embrace the diversity of tools available, from the traditional scientific calculator to modern software applications, and select the one that best suits your learning style and circumstance. With this guide, you’re well-equipped to tackle the challenges of trigonometry with confidence and finesse.


Q: Can I calculate arcsin on a basic calculator?
A: Unfortunately, basic calculators typically lack the functionality for trigonometric operations such as arcsin. You’ll need a scientific calculator, graphing calculator, or an online calculator tool for this purpose.

Q: What is the difference between sin and arcsin?
A: The sine function (sin) gives you the ratio of the opposite side to the hypotenuse in a right-angled triangle for a given angle, whereas arcsin is the inverse function that provides the angle when given that ratio.

Q: Will arcsin give me an answer in degrees or radians?
A: This depends on your calculator’s settings. Most calculators can be configured to display results in either degrees or radians, so check your settings and adjust them according to your needs.

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