The ./ Command
Divides two values, doing so element-by-element for two matrices.
value ./ value
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 4 to select ./.
…frankly, just typing it is way easier.
This command works on all calculators.
1 byte
The ./ operator works just like / in most cases. The only exception is with matrices. The / command can't do anything with then (except for dividing a matrix by a value), but ./ will just apply the operation element-by-element. Obviously, when this is done for two matrices, their dimensions have to match up.
:[a,b;c,d] ./ [e,f;g,h]
[a/e b/f]
[c/g d/h]
When dividing a constant number by a matrix with ./, you may need to space it out so that there's no confusion between ./ and a decimal point.
:1./[a,b;c,d]
Error: Data type
:1 ./ [a,b;c,d]
[1/a 1/b]
[1/c 1/d]
Error Conditions
240 - Dimension mismatch happens when dividing a matrix by another matrix of a different size.