Entering answers

For every question, you should input your answer into the answer box below the question prompt. Depending on the question, you may need to enter a function/expression in terms of variables/constants provided by the question, or you may need to enter an exact number.

The input field can function like a mini-calculator; it understands common constants and functions. It will show you a preview of your parsed answer as you type, and will display an approximation of your answer when the answer is an exact number.

In fact, if your answer does not have an exact decimal representation, you must type in the exact answer (in terms of \(\cos, \sin, e, \pi, \text{etc.}\)). The precision used your answer is checked to is greater than that of most calculators. For example, if the answer is \(e^{\cos 2}\), you must enter your answer as e^cos(2) and not 0.65958.

The functions you may use can be found here: functions, constants. Not all of these will work in the input field, but simple elemetary functions and common constants should work. To use \(\pi\) for example, simply type pi. To calculate \(\cos(1)\), simply enter cos(1). Note that all trigonometric and hyperbolic functions use radians as both of their input and output units.

The following manually added / renamed functions are also available:

• arcsin(x)
• arccos(x)
• arctan(x)
• arcsinh(x)
• arccosh(x)
• arctanh(x)
• ln(x)
• nCr(n,r)
• nPr(n,r)

If you use undefined constants or functions, it may not error until you submit your answers at the end, which is when answers are checked.

Also note that it is your responsibility to determine whether the answer should be a numerical value or a function when such information not explicitly specified. The questions give you enough information to discern whether the answer is in terms of constants and variables from the question, or whether it is a numerical value.

Submitting answers

Apart from the tutorial questions, your answers will not be checked as you type them. This is to prevent brute-forcing the answer to each individual question. Moreover, the system is designed so that it can only tell if all the answers are correct. It is physically impossible to check individual answers by looking at the source code. Thus, you will not know which question is incorrect until you get them all right.

However, if there is an error evaluating a certain answer you inputted, then you will be told which question that was so you can correct it.

This website is purely client-side and does not store identifiable user data on any server. The developer has made no efforts to send any user-generated data to any server. This can be verified by viewing the source code of this project.

However, this site is hosted on Cloudflare Pages, and hence is on Cloudflare's network. Thus, usage of this site may be subject to Cloudflare's privacy policy (available here).

Your IGN, dark mode preference and previous answers are saved between sessions using your browser's local storage. However, this data is not accessible by the developer.