Mathematical Software. Mathematical Research. Mathematical Education. Tvalx Products.
Graphing Calculator 2D Numeric is a graphing calculator of general purpose. With it you can quickly explore not only shape of graph but also domain and range of function. Although visualization is not substitution of logical reasoning, it helps you to check if your reasoning goes in right direction. Arcsecant is not defined between -1 and 1. Indeed, Secant = 1 / Cosine and the range of Cosine is [-1, 1]. So the range of Secant is union of two intervals (- infinity, -1] and [1, infinity). So is the domain of Arcsecant.
In the Edit Window you can type formulas of any complicity using functions denoted by buttons. The resulting function is calculated at 6400 points of the x range. Varying the limits of x range you can either increase precision or increase a view of graph. The left window gives a general view of graph on entire range, the right window gives detailed view at chosen point. The right window corresponds to the Magnifying Square on the left window. Navigate the Magnifying Square by clicking on the left window or using navigation buttons.
The calculator has capability to calculate numerically first two derivatives, area under curve (definite integral ), and length of curve (length integral).
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