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| English | Tamil |
| complex number | சிக்கலான எண் (A number in the form a + bi, where a and b are real numbers and i = sqrt(-1) , so that bi is imaginary unless b = 0) |
| complex script | சிக்கலான ஸ்கிரிப்ட் (A language whose characters require ligation or shaping, such as a right-to-left language (Arabic, Persian, Hebrew, and Urdu) or certain South Asian languages) |