|
We're glad you came by, but you might find what you're looking for elsewhere. TI-Basic Developer is not the site it once was. While its information on commands and other calculator features remains almost second-to-none, its forum, archives, and even hosting service, Wikidot, have been decaying for years. The calculator community would love to see what you're working on, or help you in your next coding adventure, but TI-Basic Developer is no longer the place to do it. Instead, you should head over to Cemetech (primarily American) or TI-Planet (primarily international). Both are active, well-established forums with their own archives, chatrooms, reference material, and abundant coding tools and resources. We'll see you there, we hope. |
Raises a value to a power, doing this element-by-element for matrices.
base .^ exponent
Menu Location
- Press 2nd MATH to enter the MATH menu.
- Press 4 to enter the Matrix submenu.
- Press K to enter the Element ops submenu.
- Press 1 to select .+.
…frankly, just typing it is way easier.
This command works on all calculators.
1 byte
The .^ operator is generally the same as ^, except when dealing with matrices. While ^ does quite a lot of matrix-specific stuff (check out its page for more information), .^ just applies it element-by-element:
:[a,b;c,d] .^ 2
[a^2 b^2]
[c^2 d^2]The command can handle any choice of matrix and scalar as the base and exponent. However, if you're raising a constant number to a matrix power, be careful that the dot in .^ is not confused for a decimal point, by adding extra spaces:
:2.^[a,b;c,d]
Error: Data type
:2 .^ [a,b;c,d]
[2^a 2^b]
[2^c 2^d]Although this doesn't come up often, be aware that .^, like ^, is evaluated from right to left: a.^b.^c is calculated as a.^(b.^c), not as (a.^b).^c.
Error Conditions
240 - Dimension mismatch happens when a matrix is raised to the power of another matrix, with different dimensions.