You may not have noticed it, but the words will become a clear reminder of what the Fortran code will actually look like as we move forward. We have been using specific language to describe some of our pseudocode from the beginning of this lesson. Subtract today’s outfit from your clean wardrobe. If the forecast temperature is above 60☏, select shorts, else select pants.ĥ. If the forecast temperature is at or above 70☏, select a short-sleeved top, else select a long-sleeved dress top.ī. If the forecast temperature is above 60☏, select athletic shorts, else select pajama pants.Ī. If the forecast temperature is at or above 70☏, select a t-shirt, else select a long-sleeved top.ī. Catalog your entire wardrobe into short-sleeved, long-sleeved dress, t-shirt, and long-sleeved tops, and shorts, pants, athletic shorts, and pajama pants.Ī. Use calendar to find whether it is a workday or weekend.ģ. Use app to gather forecast high temperature for today.Ģ. It just needs to be translated from pseudocode to Fortran code proper. In Fortran, your code will be in a logical algorithmic format just like your pseudocode. It is used to benchmark the speed and computing power of the world’s fastest supercomputers. Prior machine language programs were written to a specific computer, but a Fortran program could be run on any computer with the Fortran compiler installed - and thus, an industry heavyweight was born.įortran still reigns as the language of choice in computationally-expensive fields such as computational fluid dynamics (weather and climate models!), finite element analysis, economic modeling and DNA sequencing. Fortran effectively reduced the number of necessary programming statements by a factor of 20 by having the compiler do the work of laborious tasks such as allocating memory to specific program operations. Or, as its founder John Backus would say, “I was lazy, and didn’t like writing programs, so I started work on a system to make it easier to write programs.”įortran achieved this first-ever, high-level programming interface through the creation of a compiler - a program, or set of programs, that turns algebra and logical expression-based, high-level code into assembly language. In many cases one might choose an object-oriented language such as Java to write said program, however here we will focus on the lesser-known Fortran, still a favorite among scientists and engineers for good reason.įortran ( Formula Translation) was developed in 1954 by a diverse team at IBM, in an effort to simplify the programming process so that others aside from computer programming experts could perform complex calculations without needing to directly modify assembly or machine language (0s and 1s). Simple Program Construction in Fortran » History and Introduction to FortranĪmateur and professional programmers alike have many languages at their disposal for use in coding something like our previous “what to wear” program.
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