کیبورد ریاضی آنلاین
This online mathematical keyboard is limited to what can be achieved with Unicode characters.
This means, for example, that you cannot put one symbol over another. While this is a serious limitation,
multi-level formulas are not always needed and even when they are needed, proper math symbols
still look better than improvised ASCII approximations.
Compare:
∀(x, y ∈ A ∪ B; x ≠ y) x² − y² ≥ 0
For all (x, y :- A u B; x != y) x^2 - y^2 >= 0
The advantage of using plain Unicode is that you can copy & paste your text...
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