Define tensor quantity with example … posted Mr. Sunil Kumar

Tensors are geometric objects that describe linear relations between vectors, scalars, and other tensors. Elementary examples of such relations include the dot product, the cross product, and linear maps. Vectors and scalars themselves are also tensors.

Tensors are used to represent correspondences between sets of geometric vectors.

Tensors are important in physics because they provide a concise mathematical framework for formulating and solving physics problems in areas such as elasticity, fluid mechanics, and general relativity. Tensors were first conceived by Tullio Levi-Civita and Gregorio Ricci-Curbastro

Please read the following for more information

1. http://www.grc.nasa.gov/WWW/k-12/Numbers/Math/documents/Tensors_TM2002211716.pdf
2. http://www.doitpoms.ac.uk/tlplib/tensors/what_is_tensor.php
3. http://mathworld.wolfram.com/Tensor.html
4. http://en.wikipedia.org/wiki/Tensor