| 開發人員: | Leen Ammeraal (3) | ||
| 價錢: | 免費 | ||
| 排名: | 0 | ||
| 評測: | 0 寫評論 | ||
| 清單: | 0 + 0 | ||
| 點數: | 0 + 0 ¡ | ||
| Google Play | |||
描述
You can enter the formula for the function you want to plot. This must be an expression in two variables, for which you now have four options, depending on the type of coordinates:
Cartesian coordinates x and y, or
cylindrical coordinates theta and r, or
spherical coordinates theta and phi, or
parametric surfaces with coordinates u and v, in which not a single function but rather x, y and z are expressed.
You can use the arithmetical operators + - * / and ^ (for exponentiation). You can add parentheses in the usual way. Blank spaces are allowed. The minimum and maximum values of the two variables must be supplied. In the case of syntax errors or division by zero, the expression is not accepted. As you enter a formula, it is displayed in more readable notation just above the text you are entering or editing.
The function surface can be viewed from any viewpoint. There are buttons to change the viewpoint but you can also change the viewing direction by swiping the image, that is, by moving your finger on the screen either horizontally or vertically. You can also specify the viewing direction by entering two angles phiE and thetaE, as illustrated in the app itself.
In the 3D image, you can display or hide the coordinate axes as you like, by means of a checkbox on the choice screen. You can display this choice screen by using the back key.
The following functions, well-known in mathematics or programming, are supported:
abs, floor, ceil, exp, log, max, min, sin, cos, tan, asin, acos, atan, sqrt. You can also use the constant pi.
Arguments must be surrounded by parentheses. For example, sin(x), not sin x. As usual, max and min take two arguments, the others take one. Note the restricted domains of some of these functions:
log(x): x positive;
tan(x): x not equal to pi/2 (plus any multiple of pi);
asin(x), acos(x): x between -1 and +1 (inclusive).
For each of the four coordinate types, there are some example available in the options menu. When you choose an example, the required type of coordinates is chosen automatically, so you need not bother about this choice. Some of these examples show coordinate axes while other hide them. The checkbox on the choice screen enables you to change this.
The specified function can be saved and retrieved later. The following data are then also automatically saved and retrieved: the coordinate intervals, the viewpoint parameters phiE and thetaE, and the state of the checkbox for displaying the axes.
In version 2.07 and higher, conditional expressions are supported. These are well-known in programming languages and have the form "logical expression ? expression 1 : expression 2". For example, the expression max(x, y) could be written as the conditional expression: (x > y ? x : y). Besides "?" and ":", the following characters can now also be used: "<", ">", "=", "&", "|", "1". You can use "=" or, as in real programming languages, "==" to test if two expressions are equal. Similarly, "&" and "|" (meaning 'and' and 'or') can appear single or double, with the same meaning. The exclamation mark "!" stands for 'not'. Therefore, "x > y" can also be written "!(x <= y)". Similarly, "!(x == y)" has the same meaning as "x != y", both denoting 'x unequal to y'. The built-in example 2 illustrates a nested conditional expression, with the part following ":" containing another conditional expression.
Please refer also to
http://home.kpn.nl/ammeraal/funcxy.html
螢幕擷取畫面
視頻
新功能
- 版本: 228
- 發佈日期:
價錢
- 今天: 免費
- 最小值: 免費
- 最大值: 免費
追蹤票價
開發人員
- Leen Ammeraal
- 平台: Android 應用程式 (1) Android 遊戲 (2)
- 清單: 0 + 0
- 點數: 0 + 654 ¡
- 排名: 0
- 評測: 0
- 折扣: 0
- 影片: 3
- RSS: 訂閱
點數
未找到 ☹️
排名
未找到 ☹️
清單
未找到 ☹️
評測
成為第一個評論 🌟
其他資訊
聯絡人
http://home.kpn.nl/ammeraal/funcxy.html你可能還喜歡
-
- Duolingo: Language Lessons
- Android 應用程式: 教育 由: Duolingo
- * * 免費
- 清單: 9 + 4 排名: 5 (1) 評測: 0
- 點數: 6 + 35,775,590 (4.5) 版本: New Learn a new language with the world s most-downloaded education app! Duolingo is the fun, free app for learning 40+ languages through quick, bite-sized lessons. Practice speaking, ... ⥯
-
- Brainly: AI Homework Helper
- Android 應用程式: 教育 由: Brainly
- * * 免費
- 清單: 0 + 0 排名: 5 (1) 評測: 0
- 點數: 2 + 4,429,756 (4.5) 版本: 5.259.0 Brainly, the AI Learning Companion Brainly is a powerful Math solver app that can help you with your school doubts. Solve Math problems in Algebra, Trigonometry, & Geometry with ... ⥯
-
- Photomath
- Android 應用程式: 教育 由: Google LLC
- * 免費
- 清單: 2 + 0 排名: 5 (1) 評測: 0
- 點數: 2 + 3,091,138 (4.3) 版本: 8.44.0 Photomath is known worldwide for helping millions of learners to learn, practice, and understand math one step at a time. Scan any math problem with the Photomath app to get ... ⥯
-
- BYJU'S – The Learning App
- Android 應用程式: 教育 由: Toppr
- 免費
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 1 + 1,817,598 (4.0) 版本: 12.2.10.17982 Learning app with LIVE online classes, instant doubt resolution, LIVE classrooms for classes 4-10, personalised study app for Maths, Science, Social Studies, video lessons and more. ... ⥯
-
- Memrise: Languages for life
- Android 應用程式: 教育 由: Memrise
- * * 免費
- 清單: 2 + 0 排名: 5 (1) 評測: 0
- 點數: 0 + 1,569,641 (4.5) 版本: 2025.08.19.0 Over 75 million people have already chosen Memrise to achieve their language goals make it your resolution this year! Whether it s finally speaking Spanish, brushing up on French, or ... ⥯
-
- U Dictionary Translator
- Android 應用程式: 教育 由: Youdao (Hong Kong) Limited
- * * 免費
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 1,291,663 (4.5) 版本: 6.7.2 * 100,000,000 users across 150 countries. * Featured by Google Play as Best App & Best Self-Improvement App. U Dictionary is a FREE dictionary and translation app. Offline Sentence ... ⥯
-
- Gauth: AI Study Companion
- Android 應用程式: 教育 由: GauthTech Pte. Ltd.
- * 免費
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 1,263,511 (4.8) 版本: 1.80.1 Gauth is the #1 AI study companion powered by newest AI model! Trusted by millions of users, Gauth offers unlimited answers for all subjects. Try Gauth for all your learning needs! Key ⥯
-
- Unacademy: Learn & Crack Exams
- Android 應用程式: 教育 由: Unacademy
- * 免費
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 1,231,227 (3.2) 版本: 6.150.0 Embark on the journey to crack your dream exam! At Unacademy, India s largest learning platform, we always strive to work hard to make your learning experience better. We aim to change ⥯
-
- Cake - Learn English & Korean
- Android 應用程式: 教育 由: Cake Corp.
- * * 免費
- 清單: 0 + 1 排名: 0 評測: 0
- 點數: 1 + 1,214,137 (4.7) 版本: 6.2.4 An incredible English & Korean learning app used by 100 million people worldwide. Master your English & Korean using free videos and audio content updated daily! We currently only ... ⥯
-
- ClassDojo
- Android 應用程式: 教育 由: ClassDojo
- * 免費
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 1 + 1,190,321 (4.8) 版本: 7.75.0 Ready to build an amazing classroom community? ClassDojo is a beautiful, safe, and simple communication app for teachers, parents, and students. * Teachers can encourage students for ... ⥯
-
- PW -JEE/NEET, UPSC, GATE, SSC
- Android 應用程式: 教育 由: Alakh Pandey
- 免費
- 清單: 2 + 0 排名: 0 評測: 0
- 點數: 0 + 1,181,379 (4.4) 版本: 15.30.2 Physics Wallah: Your Learning Platform Welcome to Physics Wallah (PW), the learning platform created by Alakh Pandey. Whether it's NEET, IIT-JEE, UPSC, CBSE, SSC, or any other ... ⥯
-
- Babbel - Learn Languages
- Android 應用程式: 教育 由: Babbel
- * 免費
- 清單: 0 + 0 排名: 0 評測: 0
- 點數: 0 + 1,089,237 (4.6) 版本: 21.81.1 Millions of people learn languages with Babbel the app built by language learning experts. Our short, interactive lessons rethink old-school language education to get you speaking a ... ⥯