A black and white rendition of the Yale Babylonian Collection's Tablet YBC 7289 (c. 1800–1600 BCE), showing a Babylonian approximation to the square root of 2 (1 24 51 10 w: sexagesimal) in the context of Pythagoras' Theorem for an isosceles triangle. The tablet also gives an example where one side of the square is 30, and the resulting diagonal is 42 25 35 or 42.4263888.
Computational mathematics is an area of mathematics devoted to the interaction between mathematics and computer computation.
A large part of computational mathematics consists roughly of using mathematics for allowing and improving
computer computation in areas of science and engineering where mathematics are useful. This involves in particular algorithm design, computational complexity, numerical methods and computer algebra.
Computational mathematics refers also to the use of computers for mathematics itself. This includes mathematical experimentation for establishing
conjectures (particularly in number theory), the use of computers for proving theorems (for example the four color theorem), and the design and use of proof assistants.
Areas of computational mathematics
Computational mathematics emerged as a distinct part of applied mathematics by the early 1950s. Currently, computational mathematics can refer to or include:
Computational science, also known as scientific computation or computational engineering Solving mathematical problems by
computer simulation as opposed to analytic methods of applied mathematics
Numerical methods used in scientific computation, for example numerical linear algebra and numerical solution of partial differential equations
Stochastic methods, such as  Monte Carlo methods and other representations of uncertainty in scientific computation The mathematics of scientific computation,
 in particular  numerical analysis, the theory of numerical methods
Computer algebra and computer algebra systems Computer-assisted research in various areas of mathematics, such as
logic ( automated theorem proving), discrete mathematics, combinatorics, number theory, and computational algebraic topology
Cryptography and computer security, which involve, in particular, research on primality testing, factorization, elliptic curves, and mathematics of blockchain
Computational linguistics, the use of mathematical and computer techniques in natural languages
Computational algebraic geometry
Computational group theory
Computational number theory
Algorithmic information theory
Algorithmic game theory
Mathematical economics, the use of mathematics in economics, finance and, to certain extents, of accounting. Experimental mathematics