Some calculations and other operations will work with individual values or ranges of values within the list. And in this video, learn how to refer to parts of a list, starting with typing in a list.
- [Instructor] Many of the list operations…that you perform in Mathematica…will use all the values in the list.…For example, you might search a list…for the minimum or maximum value…or find the average of all values in the list.…That said, some calculations and other operations…will work with individual values…or ranges of values within a list.…In this movie I will show you how to refer…to elements of a list.…To start I will type in a list.…So I will call it elist, equal,…you enumerate lists within curly brackets.…
So I'll type a left curly bracket…and I'll type in the first five perfect squares.…So 1, 4, 9,…16, 25.…I'll follow that with a right curly bracket…and shift enter.…If you want to refer to an individual list item…you type the name of the list variable…and then put the number…of the item to which you want to refer…in double square brackets.…So for example if I want to refer to the first number…of the elist variable…I would type elist followed by two left square brackets…and then the number one,…two right square brackets…
Author
Curt Frye
Released
1/24/2017- List the steps necessary to see what your notebook will look like when printed.
- Recall why you would use the Basic Math Assistant in Mathematica when creating expressions.
- Name the keyword used in conjunction with the Sort function to sort in descending order.
- Explain how to create a matrix with two rows, three columns, and that has all elements assigned the value three.
- Explain how to generate a histogram of a list of data stored in a list that is guaranteed to only display up to the maximum value of the list.
- Recall the number of controls you can add to a Mathematica notebook using the Manipulate keyword.
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome1m 14s
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1. Introducing Mathematica 11
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Get help in Mathematica3m 51s
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2. Surveying Basic Mathematica Commands
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Assign values to variables2m 38s
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Import and export data3m 25s
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3. Manipulating Lists
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Create a list2m 42s
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Refer to and edit list items5m 29s
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Add and delete list items4m 27s
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Sort and reorder lists4m 36s
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Select list items by rule4m 20s
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Delete duplicate list items2m 15s
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4. Analyzing Data Using Descriptive Statistics
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Identify data quartiles2m 40s
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5. Manipulating Matrices
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Define vectors and matrices4m 22s
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Generate useful matrices3m 28s
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Convert a matrix to a list2m 50s
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6. Managing Executable Mathematica Scripts
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Define a function3m 49s
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7.Visualizing and Formatting Data
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Create a bar chart5m 1s
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Create a scatter plot3m 23s
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Create a paired bar chart4m 16s
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Set chart options4m 12s
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Plot function output3m 7s
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8.Creating Interactive and Animated Visualizations
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Create a Wolfram Cloud app4m 29s
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Conclusion
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Additional resources1m 17s
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Video: Refer to and edit list items