Calculation League App Instructions

Calculation League app can be found at game.mentalcalculation.org.

Please note that the app is undergoing periodic revisions and additions. If you have any questions or suggestions about the app, you may contact contact@mentalcalculation.org.

FAQ

  • How do I start using the app?

    A user must enter their “name” and choose a “room”. Anything can be entered in “room” field. You could write “12345” or “room 88” or “dog” or “asdf”. When you join a room, you will receive an alert that confirms you joined the room. The game starts promptly upon a second player joining the same room.

  • What if I want to use the app by myself?

    As of February 2024, the app is only designed for multiplayer use. For single player practice, we recommend using the league simulator. You can use the app single player by simply opening the app in two browsers and joining the same room with both browsers

    Later in 2024, the app will be expanded for single player use.

  • How do I know if a competitor is in a room?

    As of Februrary 2024, you will receive an alert 2-3 seconds after joining that provides you information about any waiting players. The match settings are selected by the player who creates the room.

  • How do the colors work?

    The background color wheel controls the background color. The text color wheel controls the question and answer text. The info color wheel controls the text color for the timers, scoring, and match mode.

  • What are the app levels?

    There are currently four levels on the app. From easiest to most difficult, the levels are: qualification, regular season, playoffs, and finals.

  • What are the app modes?

    Currently, the app has two modes: (1) number of questions; and (2) league match. In league match users receive questions until either: (a) one competitor obtains a 30 point lead and a certain amount of time has passed (10 minutes on qualification or regular season, 15 minutes on playoffs and 20 minutes on finals) or (b) a certain time has passed (20 minutes on qualification and regular season, 30 minutes on playoffs, and 40 minutes on finals). In playoffs and finals mode, the match continues indefinitely until one competitor has a ten point lead even if condition b) is satisfied.

  • How does the scoring work?

    A correct answer is one point (see below for required accuracy for decimal answers). There is no penalty for an incorrect answer. There is a maximum of five attempts per question. Users have 30 seconds to answer the question (timer is in upper-right corner of screen). The app moves to the next question upon the earlier of: (a) submission of a correct answer; or (b) expiration of 30 seconds.

    The app makes use of non-integer answers. The required accuracy is the same as on the league simulator: 2 significant digits for answers between -100 and 100 and the nearest integer (.5) for answers less than -100 or more than 100.

  • What are the types of questions in the app?

    Currently, there are two types of questions in the app: multioperation questions that include 2-10 operations (only standard operations — +, -, *, /) and questions drawn from a list of custom formats containing thousands of different formats representative of questions asked at higher level calculation competitions.

    Multioperation and custom format questions are arranged in three difficulty categories and the frequency of questions from each category depends upon the app level selected.

    The ratio between multioperation and custom format questions is randomized at the beginning of the match. Custom format questions will be between 10% and 50% of total questions.

    As of Februrary 2024, no questions make use of any letters and thus English language skills are not necessary for solving any of the questions.

  • What happens if I get disconnected during a match? How do I return to the main screen?

    If you are disconnected or exit out of the match, you may rejoin the match by reentering your name and room exactly the same (including capitalization and spacing, if any) as when you joined the match. Your opponent will not be paused while you are disconnected.

    At any point, whether while in a waiting room, during a match, or after the match ends, refreshing your page will return you to the “home” page of the app.

    Please note that room are currently cleared of data after 60 minutes. If you attempt to rejoin after this period, the app will create a new room.

  • What improvements to the app are expected?

    The app is intended to be expanded to support competition in specific standard tasks, provide for user accounts with limited statistical and rating information, include modes for single player training, and add easier levels.

  • Can I use the app on mobile?

    You can certainly try. As of Februrary 2024, the app is not designed to support mobile use so you may encounter some difficulties (this also applies to tablet use). The extent of the difficulties will depend on the specific size of your screen and your browser settings.