Instruction for MathEditor.com 
Formulas can be written very fast in IT format.
Example
You enter the upper square above:  Half of 10 is 10/2  
Then click or press Enter.  
The flags and the text will disapear and automatically will be written: 

MathEditor.com can be operated directly online from the website and can also bedownloaded to your own computer and used offline.
Click button explanation
If you click on a click button, the procedure is as described below.
MathEditor will be downloaded as a ZIP file named MathEditorOffline. The file is usually stored in the Downloads folder. On a PC, rightclick in the file and select "Extract All ...". A folder with the same name will be created and there is a file named MathEditorOffline in this folder. Clicking on this file will enable MathEditor without using the Internet.  
You can choose whether you want to use decimal point or a decimal comma. with decimal point, commas may not appear in calculation expressions, and with decimal comma, points may not appear in calculation expressions.  
Calculation will be made. This facility can also be accessed by pressing "Enter" (line breaks).  
The text in Math format is printed or saved as a PDF file. If you want to save, change the printer to "Save as PDF". If you want to save the text in IT format, just click: .  
Here you can send the IT text by email. The recipient can view the math in a mathematical format by copying to MathEditor. It can often make sense to send yourself and then save the IT text for further editing later.  
Another website will open with MathEditor. It is useful to solve several tasks.  
Some characters are displayed, which can be inserted at the end of your text with one click. 
Format of the math  ITFormat  
Plus  2 + 3  2+3  There is no difference  
Minus  53  5  3  There is no difference  
Multiplication  2⋅3 2 × 3  2*3  2·3 when decimal point is used and 2×3 and 2 × 3 when decimal point is used.  
Division 
 6/3  
Superscript  5²  5^2  
Subscript  x_{2 }  x_2  
Square root  √9  sqrt(9)  
Root  ³√7  root(3;7)  Note: Semicolon  
!  3! = 6  3! = 6  There is no difference  
Pi π  π  pi()  π = 3,14 (rounded)  
Euler's number e  e  e()  e = 2,718 (rounded)  
Logarithm  Log(10)=1  Log(10)=1  There is no difference  
Natural logarithm  Ln(e)  Ln(e())  
Natural exponential function  exp(e) = 1  exp(e()) = 1  
Cosine  Cos(60°)  cos(60) Cos(60°)  Both options are available in the IT format can be used  
Sinus  Sin(30°)  sin(30) Sin(30°)  Both options are available in the IT format can be used  
Tangent  Tan(45°)  tan(45) Tan(45°)  Both options are available in the IT format can be used  
The inverted cosine  Cos^{1}(0) = 90° arcCos(0) = 90°  Cos^1(0) = 90 arcCos(0) = 90  
The inverted sinus  Sin^{1}(1) = 90° arcSin(1) = 90°  Sin^1(1) = 90 arcSin(1) = 90  
The inverted tangent  Tan^{1}(1) = 45° arcTan(1) = 45°  Tan^1(1) = 45 arcTan(1) = 45  
Σ Sigma 
 Sigma(j=1;3;2j) = 12  Note: Semicolon. After the sigma comes automatic line break in the Math text.  
Functions You can define functions yourself with names from a to z and from A to Z. Function names are casesensitive. Ie by functions distinguishable uppercase and lowercase. For example, type: g(t)=2t G(t)=t^2 (t^2=t²) g'(t)=2 When you define a function, you often by automatic calculation also will get the derivative and antiderivative, as you can use immediately without further ado. If you want to see the function expression, just enter for example: G(t) 