Calculators are emerging one after another, scientific calculators are also emerging one after another, and scientific calculators that draw function diagrams are also emerging one after another.
Can you do something new? Yes! Who said yes? ！

What is the most frequently used calculation method in our daily life? Calculator? mental calculation or arithmetic? Excuse me, isn't it draft paper?
Yes, since the first grade began to learn mathematics, draft paper is the most commonly used calculation tool. Have you ever thought that if you can write the calculation formula on the paper, you can get the result, if you write the function equation on the paper, you can get the function diagram automatically? Recalling that when I opened the geometric sketchpad to see the function diagram, I recalled that when there were more paper than homework books, I was more bitter than anyone else?

Tydlig breaks the traditional calculator picture, adopts the form of manuscript paper, and numbers, symbols and function diagrams are placed and dragged freely. It integrates efficiency, fun and novelty, creating a new computing environment.

operation

When the finger clicks, it pauses for a while, the number/character will float upward slightly, and the content will appear fill color. At this time, it can be dragged at will. When the finger pauses for a longer time (about 1s), an advanced function bar will appear, which will be explained later.
Double click the number to clear it. The adding position is behind the selected content. If you need to add content in the front row, you can find a place to add it at will, and then drag it.

function

Tydlig has logarithm, power function, sine cosine function and other operations, and can display function images through self built equations. (Here's a trick. Slide the Delete key to the left to display the quick screen clearing button.)

In the function menu, they are: reference, mark, delete, disassociate, select all in a single line, select all on the page, and add numbers to the function diagram.
As you can see, the typeface and logo of Tydlig are very beautiful, with clear colors and proper line spacing. It is worth mentioning that App also allows numbers in (+10, - 10) to change using the number axis, and the number of digits after the decimal point follows the system setting, which is conducive to checking rules and changes between various functions.

The mantissa after the decimal point can be set to 10 digits at most, which is very rare. The setting item also allows users to customize when to use the science and technology law, which is a very user-friendly function.

Summary

It is impossible to express how good Tydlig is. The subtlety of it must be absorbed by the user. Its appearance has undoubtedly overturned Xiao Bian's cognition of calculators. His previous dream has become a reality, breaking away from the shackles of rules and regulations, making computing full of activity, flexible and changeable operation, and the function diagram has directly changed from withered stone and rotten wood to brook and flowing water. All these creative scenes created by Tydlig will certainly make you feel an incredible feeling in the process of computing.

Finally, let's note that the Apple Store in Central is giving away this app.