System variables in Mathcad indicate accuracy of computation when calculus of approximations are in use in integration operations, solving for equation roots or finding a solution to sets of equations procedures, set the value of the array inferior index, set data input and output parameters. All in all there are six system variables in Mathcad; they are presented in the following table.
System variables change is performed in Mathcad by means of menu Mathematics, Options. In the dialogue box Math Options you can scan and edit the values of system variables. The influence of values of system variables on the results of some functions is shown in the programme listing. Different assemblies of data are generated for function norm(n,m,), which guarantees the generation of vector n of random numbers, which obey the normal law of distribution with the mathematical expectation =m and standard deviation =s, with different values of Seed.
The way system variables affect the computational results in Mathcad.
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