Mathcad: differentiating with indexes

In summary, Mathcad is a computational software program that allows for mathematical calculations and solving equations. It is capable of differentiating with multiple indexes, which is useful for representing multiple variables or functions in a concise manner. To differentiate with indexes in Mathcad, the built-in "d/dx" operator or "partial derivative" function can be used. However, there may be limitations and challenges when using indexes in differentiation, such as difficulty in visualizing and interpreting results and potentially longer and more complicated calculations.
  • #1
Uku
82
0
Hello!

The picture says a thousand words:
http://www.hot.ee/jaaniussikesed/v6rrand.jpg

In the last member under the square root, there is the error. For some reason I am not able to differentiate with an array index, ts1 is a single column 5 row matrix. How to solve this? The error says "a name is required here".

Thanks,
U.
 
Last edited by a moderator:
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  • #2
Uku said:
Hello!

The picture says a thousand words:
http://www.hot.ee/jaaniussikesed/v6rrand.jpg

In the last member under the square root, there is the error. For some reason I am not able to differentiate with an array index, ts1 is a single column 5 row matrix. How to solve this? The error says "a name is required here".

Thanks,
U.

Try assigning ts1[i to a variable, t say, and differentiate that instead.

attachment.php?attachmentid=51500&stc=1&d=1349334622.jpg
 

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1. What is Mathcad and how does it relate to differentiating with indexes?

Mathcad is a computational software program that allows users to perform mathematical calculations and solve equations. Differentiating with indexes refers to the process of finding the derivative of a function with respect to a variable that is represented using an index notation.

2. What is the purpose of using indexes in differentiation?

Indexes are used in differentiation to represent multiple variables or functions in a concise manner. This allows for easier manipulation and calculation of derivatives using the chain rule and other differentiation rules.

3. Can Mathcad differentiate with multiple indexes?

Yes, Mathcad has the capability to differentiate with multiple indexes. This is useful for when there are multiple variables or functions in a single equation that need to be differentiated.

4. How do I differentiate with indexes in Mathcad?

To differentiate with indexes in Mathcad, you can use the built-in differentiation operator "d/dx" followed by the variable or function you want to differentiate with respect to. You can also use the "partial derivative" function for partial differentiation with multiple indexes.

5. Are there any limitations or challenges when differentiating with indexes in Mathcad?

One limitation of differentiating with indexes in Mathcad is that it can be more challenging to visualize and interpret the results compared to traditional differentiation notation. Additionally, using indexes in differentiation may not always be the most efficient method, as it can lead to longer and more complicated calculations.

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