(05-11-2020 10:18 PM)pinkman Wrote: [ -> ]Numerical and symbolic solve. Still don’t understand what’s wrong.
The 5 Key in algebraic mode put down [ ].
However, in Text mode it does Matrix?
I don't think this is right?
It did not do that before?
so I have to solve everything in the algebraic entry if I want to use those [ ].
(05-11-2020 10:18 PM)pinkman Wrote: [ -> ]Numerical and symbolic solve. Still don’t understand what’s wrong.
Ok, I used the Brackets on the 5 Key and got the answer you got but there is a small square with a dot in the middle right of entry like one when you put in a power sign like y^3.
But it works now is that normal. I will just ignore the dot.
This software changes so much.
(05-11-2020 10:18 PM)pinkman Wrote: [ -> ]Numerical and symbolic solve. Still don’t understand what’s wrong.
Don't you need commas between the 2 equations?
(05-12-2020 12:54 AM)rprosperi Wrote: [ -> ] (05-11-2020 10:18 PM)pinkman Wrote: [ -> ]Numerical and symbolic solve. Still don’t understand what’s wrong.
Don't you need commas between the 2 equations?
when he entered the equation He put them in. the Solves answers without putting them me.
HP Prime wrote the answer without comas.
In Texbook entry mode you’re invited to fill a matrix with the placeholders (dots in small squares) and the + signs to add rows or columns. Inserting a coma will only move the cursor to the next placeholder.
In Algebraic entry mode you need a comma to separate the entries.
In both case the stack represents them without a comma.
I think what puzzled you is that I did not write any commas in my first answer fsolve([eq1 eq2], [x y])
The help sections for fsolve and solve are a bit confusing, especially the one for solve because it doesn’t mention the ExpVector form of the command, even if an example with 3 equations involving x, y and z as variables is given.
PS (off topic): I sometimes write “numerical solution”, and sometimes “numeric solution”. What’s the right word?
(05-12-2020 06:17 AM)pinkman Wrote: [ -> ]In Texbook entry mode you’re invited to fill a matrix with the placeholders (dots in small squares) and the + signs to add rows or columns. Inserting a coma will only move the cursor to the next placeholder.
In Algebraic entry mode you need a comma to separate the entries.
In both case the stack represents them without a comma.
I think what puzzled you is that I did not write any commas in my first answer fsolve([eq1 eq2], [x y])
The help sections for fsolve and solve are a bit confusing, especially the one for solve because it doesn’t mention the ExpVector form of the command, even if an example with 3 equations involving x, y and z as variables is given.
PS (off topic): I sometimes write “numerical solution”, and sometimes “numeric solution”. What’s the right word?
It depends haven't seen examples of either from you to say that one is right or wrong.
I would say a numerical solution: that's an article that will help decide.
https://machinelearningmastery.com/analy...-learning/