Scientific Computing With MATLAB And Octave (Te...
Computational science, also known as scientific computing, technical computing or scientific computation (SC), is an area of science that uses advanced computing capabilities to understand and solve complex physical problems. This includes
Scientific Computing with MATLAB and Octave (Te...
In practical use, it is typically the application of computer simulation and other forms of computation from numerical analysis and theoretical computer science to solve problems in various scientific disciplines. The field is different from theory and laboratory experiments, which are the traditional forms of science and engineering. The scientific computing approach is to gain understanding through the analysis of mathematical models implemented on computers. Scientists and engineers develop computer programs and application software that model systems being studied and run these programs with various sets of input parameters. The essence of computational science is the application of numerical algorithms and computational mathematics. In some cases, these models require massive amounts of calculations (usually floating-point) and are often executed on supercomputers or distributed computing platforms.[verification needed]
The term computational scientist is used to describe someone skilled in scientific computing. Such a person is usually a scientist, an engineer, or an applied mathematician who applies high-performance computing in different ways to advance the state-of-the-art in their respective applied disciplines in physics, chemistry, or engineering.
Predictive computational science is a scientific discipline concerned with the formulation, calibration, numerical solution, and validation of mathematical models designed to predict specific aspects of physical events, given initial and boundary conditions, and a set of characterizing parameters and associated uncertainties. In typical cases, the predictive statement is formulated in terms of probabilities. For example, given a mechanical component and a periodic loading condition, "the probability is (say) 90% that the number of cycles at failure (Nf) will be in the interval N1
Computational science and engineering (CSE) is a relatively new[quantify] discipline that deals with the development and application of computational models and simulations, often coupled with high-performance computing, to solve complex physical problems arising in engineering analysis and design (computational engineering) as well as natural phenomena (computational science). CSE has been described[by whom?] as the "third mode of discovery" (next to theory and experimentation). In many fields[which?], computer simulation is integral and therefore essential to business and research. Computer simulation provides the capability to enter fields[which?] that are either inaccessible to traditional experimentation or where carrying out traditional empirical inquiries is prohibitively expensive. CSE should neither be confused with pure computer science, nor with computer engineering, although a wide domain in the former is used in CSE (e.g., certain algorithms, data structures, parallel programming, high-performance computing), and some problems in the latter can be modeled and solved with CSE methods (as an application area).
At some institutions, a specialization in scientific computation can be earned as a "minor" within another program (which may be at varying levels). However, there are increasingly many bachelor's, master's, and doctoral programs in computational science. The joint degree program master program computational science at the University of Amsterdam and the Vrije Universiteit in computational science was first offered in 2004. In this program, students:
ETH Zurich offers a bachelor's and master's degree in Computational Science and Engineering. The degree equips students with the ability to understand scientific problem and apply numerical methods to solve such problems. The directions of specializations include Physics, Chemistry, Biology and other Scientific and Engineering disciplines.
JupyterLab is the latest web-based interactive development environment for notebooks, code, and data. Its flexible interface allows users to configure and arrange workflows in data science, scientific computing, computational journalism, and machine learning. A modular design invites extensions to expand and enrich functionality.
Cleve Moler is the author of the first MATLAB, one of the founders of MathWorks, and is currently Chief Mathematician at the company. He is the author of two books about MATLAB that are available online. He writes here about MATLAB, scientific computing and interesting mathematics.
GNU Octave is a programming language for scientific computing and its syntax is largely compatible with Matlab. Uses include: data cleaning and transformation, numerical simulation, statistical modeling, data visualization, machine learning, and much more.
A Dockerfile must start with a FROM instruction. It sets a base image from which we are going to create our own image. The jupyter/base-notebook is one of the Jupyter ready-to-run Docker Ubuntu-based images containing Jupyter applications and interactive computing tools.
This function returns a quantile value of sorted_data, adouble-precision array of length n with stride stride. Theelements of the array must be in ascending numerical order. Thequantile is determined by the f, a fraction between 0 and 1. Forexample, to compute the value of the 75th percentile f should havethe value 0.75. There are no checks to see whether the data are sorted, so the functiongsl_sort should always be used first. The quantile is found by interpolation, using the formula quantile = (1 - \delta) x_i + \delta x_i+1 where i is floor((n - 1)f) and \delta is(n-1)f - i. Thus the minimum value of the array (data[0*stride]) is given byf equal to zero, the maximum value (data[(n-1)*stride]) isgiven by f equal to one and the median value is given by fequal to 0.5. Since the algorithm for computing quantiles involvesinterpolation this function always returns a floating-point number, evenfor integer data types.
This page lists publications since 2017 from use of HPCF as well as technical reports of papers on all aspects of scientific computing and their applications. Links to preprints/reprints are provided whenever possible. Please send your submissions in PDF form to the chair of the governance committee, Matthias K. Gobbert. In particular, all publications involving use of machines in HPCF are required to be submitted for inclusion here and will be flagged accordingly.
Permutation tests are more robust and help to make scientific results more reproducible by depending on fewer assumptions. However, they are computationally intensive as recomputing a model thousands of times can be slow. The purpose of this post is to briefly list some options available for speeding up permutation.
It is also possible to assemble multiple Pis in a cluster, using distributed computing engines such as SLURM, TORQUE or SGE. The Pi has the core requisites: it runs on Linux and comes with a decent 10/100 Mbps Ethernet port, such that creating a system is a matter of assembling the pieces and configuring. 041b061a72