Many problems from mathematics and engineering can be described in terms of reconstruction from geometric information. R e c o n s t r u c t i o n $ \boldsymbol{Reconstruction} $ https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315119601/fb8178cb-c53c-4311-b072-eff5ec016aba/content/inline-math34_1.tif"/> is the algorithmic problem of combining the results of measurements of some aspect of a physical or mathematical object to obtain desired information about the object.