"""Gauss also made important contributions to number theory with his 1801 book Disquisitiones Arithmeticae (Latin, Arithmetical Investigations), which, among other things, introduced the triple bar symbol for congruence and used it in a clean presentation of modular arithmetic, contained the first two proofs of the law of quadratic reciprocity, developed the theories of binary and ternary quadratic forms, stated the class number problem for them, and showed that a regular heptadecagon (17-sided polygon) can be constructed with straightedge and compass"""
গুঞ্জন শোনা যাচ্ছে যে ইন্টারঅ্যাক্টিভ এজেন্সি অতেন্টিকা এর পেছনে রয়েছে।Samanantar Samanantar