MatheAss Changelog
What's new in MatheAss 9.00
Dec 11, 2020- Prime tuples:
- In an interval [a,b], all prime twins (p,p+2), prime cousins (p,p+4), sexy primes (p,p+6) and prime triplets are determined.
- Calculating percentages:
- The base value G, the percentage value W, the percentage p or p%, the growth factor q and the final value E are calculated if two independent values are entered.
- Special straight lines in a triangle:
- The program determines the equations of the perpendiculars, the bisectors of the sides, the bisectors of the angles and the heights of a triangle. In addition, the centers and radii of the circumference, the inscribed circle and the three excircles.
- Mappings of Polygons:
- Displacement, straight line mirroring, point mirroring, rotation, centric stretching and shear can be applied to an n-gon.
- The input has been made clearer and the construction lines can be drawn in the diagram.
- Factoring polynomials:
- The program calculates the rational zeros and the linear factorization of a polynomial.
- Polynomial functions:
- The program carries out the curve discussion for polynomial function. This means that the derivatives and the antiderivative are determined, the function is examined for rational zeros, for extremes, for inflection points and for symmetry.
- Rational functions:
- The program carries out the curve discussion for a rational function. That is, the derivatives, the definition gaps and the continuous continuation are determined. The function is examined for zeros, extrema, points of inflection: and the behavior for | x | → ∞.
- Statistics:
- In the statistics section, the histogram was supplemented by a box plot.
- Logistic regression:
- The program determines a curve fit for a series of measurements to the logistic function with the parameters a1 = ƒ(0)·S , a2 = ƒ(0) , a3 = S - ƒ(0) , und a4 = -k·S and the saturation limit S .
- Data series from Johns Hopkins University (JHU) on the corona pandemic are attached as CSV files.
New in MatheAss 8.20 (May 10, 2012)
- Rewritten on a current compiler the new version runs not only under 64 bits Windows, but also clearly faster, which is particularly noticeable with the determination of the prime numbers.
- At the prime factorization also numbers are divided, whose smallest prime factors are larger than 10^5.
- At the surface functions the representation was arranged more attractive and the scaling of the axes of coordinates was indicated.
- At the curve discussion the problems were cleared, which the past version sometimes had with the symbolic derivative.
- The solution of linear sets of equations now also masters those with no unique solution and the set of solutions is given in parametric representation.
- In all parts of the program, which operate with matrices, these can be stored over a local menu (right mouse button) in the clipboard or in a file and be read in other place again.
- The item pseudoinverse matrix was added.
- The help file now again can be called context sensitive directly from the program. In addition it was thoroughly revised and extended.
- The program texts of the English version were made available completely as text file with the name english.txt. It can be now translated if necessary and be merged as a fourth language beside German, English and French.
- As samples for external language files italiano.txt, espaniol.txt, greek.txt, russian.txt and türk.txt are attached. They are automatically translated and thus far away from being perfect. For a native speaker however it might be easy to correct them.