Description of Invision Graph Calculator program from Softdepia.com:
Dedicated to the education of mathematics, teacher or student. Designed for simplicity of use to maximize learning and minimize computer phobia. Features high-precision calculations that are performed to 18 digits with a range as large as 1.1E+4932 and as small as 3.4E-4932. Invision is a software for Windows which utilizes many of its advantages including the graphical interface and mouse. It has a full-screen, highly detailed graph and a full calculus menu. A special feature that Invision offers is the written symbolic expressions of the derivatives and integrals with the results. A complete help system is provided, along with a helpful manual. Suggested for math levels of Algebra I to Calculus.
Invision Graph Calculator is a "Free to try" program. You can download and try it for an evaluation period.
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