![]() ![]() It is commonly represented by a directed line segment whose length is the Recall that in contrast to a vector, a scalar has only a magnitude. In the three dimensional space is a quantity that has both magnitude and direction. The latter is heavily used in computers to store data as arrays or lists. Although vectors have physical meaning in real life, they can be uniquely identified with ordered tuples of real (or complex numbers). It also serves as a tutorial for operations with vectors This section provides the general introduction to vector theory including Introduction to Linear Algebra with Mathematica Glossary Return to Mathematica tutorial for the fourth course APMA0360 Return to Mathematica tutorial for the second course APMA0340 Return to Mathematica tutorial for the first course APMA0330 Return to computing page for the fourth course APMA0360 Return to computing page for the second course APMA0340 Return to computing page for the first course APMA0330 Laplace equation in spherical coordinates.Numerical solutions of Laplace equation.Laplace equation in infinite semi-stripe. ![]() Boundary Value Problems for heat equation.Part VI: Partial Differential Equations.Part III: Non-linear Systems of Ordinary Differential Equations.Part II: Linear Systems of Ordinary Differential Equations.(Note, converting to TraditionalForm and back to InputForm has messed with my original input line, but it is still the same expression.) It's cool that unit names can be used as variables like this. You see? I can make 6.666 Liters of my 0.075% solution from my 5 grams of salt. It seems to work out alright for evaluating expressions.Įvaluating! Just hit the orange Go icon, or Shift-Enter. This will NOT be parsed the same way you can do a more natural language input on the main page. Reformat if you want, or continue building your expression, or whatever. Here I have already converted the input line into "TraditionalForm" and opened the menu again afterward. Just under the evaluate Go arrow button for the input line is a kinda well hidden tools menu (gear icon). You can evaluate the expression by SHIFT-ENTER or from the arrow button to the right. Works also with underscore char in the variable name (they just aren't blue anymore). I don't know any other way to get to the next screen without doing this.Ĭhange the variable names on the Input: line (shown above before and below after) and/or continue to build your expression. Once you've got something in there that evaluates, click on the orange banner at the bottom that says Instantly go further which will open a new tab to a notebook. You could just simply START your expression here, and continue building it after the next step. My Input is basically this question: given 5g salt, how much 0.075 solution can I make? So I put in the expression with single letter variables. I really don't know much about it, but i found it while trying to make an image of a unit conversion / factor-label thing. The notebook feature will let you use variable names. I also don't know jack about this cloud notebook thing, so there might be a way to where you want to go from there. ![]() It seems to do quite alright with mathematical expressions (and evaluating them) so maybe it is close enough to help you and others - it does what I wanted variable names for. I know this is not really a full answer to this general question.īut it does let you use variable names in Wolfram Alpha. ![]()
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