Log in Register. Search titles only. Search Advanced search…. New posts. Search forums. Log in. Install the app. For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser. The arctan function represent the inverse of the tangent function. If the tangent of a number is a second number, the arctan of the second number is the first number. The function is useful when solving trigonometric problems.
If you know the two shorter lengths in a right-angled triangle, the arctan of the ratio between them equals the angle between one of them and the hypotenuse.
Search your calculator for the arctan button, which will be marked as either "arctan," "atan" or "tan If it doesn't, continue to Step 2. The number's arctan will appear. You can control your preferences for how we use cookies to collect and use information while you're on TI websites by adjusting the status of these categories. Download free day trial versions of the most popular TI software and handheld emulators.
Learn about the math and science behind what students are into, from art to fashion and more. We are here to help with distance learning resources for schools and districts. See our latest posts. Enter Keywords:. Example: Calculate the inverse sine arcsine of. Example: Calculate the inverse cosine arccosine of. Example: Calculate the inverse tangent arctangent of.
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