Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
我无法解决一个简单的数学问题。我的代数技能非常令人尴尬。
我已经编写了一个音量滑块来给我一个分贝增益值。
db_gain=(x * (8 / 5)) - 90;
对于上述内容,我知道 x 是什么(滑块拇指位置),并使用它来查找 db_gain。
如何切换它,以便给定 db_gain 我找到 x (拇指位置)
db_gain = (x * (8/5)) - 90 => db_gain + 90 = x * (8/5) => (5/8) * (db_gain + 90) = x