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Online app that can be used to make an exact plot of a surveyed area - like a room, a property or any 2D shape.

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Cálculo em linha com a função resolver_sistema da expressão resolver_sistema([x+y+z=1;x-y+z=3;x-y-z=1];[x;y;z])

pressbooks.umn.edu

This book was edited for an upper-division writing-intensive course centered on major issues of culture in the context of the Spanish-speaking world. It is not a history of civilization, nor is it a survey of either Latin American or Peninsular literature. Rather, our objective here is to familiarize ourselves with the different issues central to the development of the Hispanic world as a cultural entity, and to practice analyzing and questioning received notions of culture in this context. We will examine all sorts of texts--literary, visual, musical, and filmic--from all periods of both Latin American (including Brazil) and Peninsular history, reading them through the lens of a series of topics found below. The materials were compiled, edited, and written by the instructors from the Department of Spanish and Portuguese Studies at the University of Minnesota -Twin Cities. With this publication, we wish to make this book available to any equivalent courses at other institutions.

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khanacademy.org

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.