CAS: REDUNDANT PARENTHESES
08-26-2016, 11:57 AM
Post: #1
 compsystems Senior Member Posts: 1,201 Joined: Dec 2013
CAS: REDUNDANT PARENTHESES
Hello, I would like in future versions, a better and more expert decoder of math expressions, the hp-prime CAS adds unnecessary parenthesis =(

Example #1

Entry line
_________________________________
solve( (x+5)*e^x = (x+5)*e^(2*x), x ) [ENTER]
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
returns to the history as

solve( ( (x+5)*e^x ) = ( (x+5)*e^(2*x) ) , x )

many people might like it show Extra parentheses, by a flag I would like to disable this feature.

When copying expressions, hp-prime to a document. there always makes editing, the idea is to be nearest to the notation of a math book
08-26-2016, 05:56 PM
Post: #2
 StephenG1CMZ Senior Member Posts: 816 Joined: May 2015
RE: CAS: REDUNDANT PARENTHESES
(08-26-2016 11:57 AM)compsystems Wrote:  Hello, I would like in future versions, a better and more expert decoder of math expressions, the hp-prime CAS adds unnecessary parenthesis =(

Example #1

Entry line
_________________________________
solve( (x+5)*e^x = (x+5)*e^(2*x), x ) [ENTER]
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
returns to the history as

solve( ( (x+5)*e^x ) = ( (x+5)*e^(2*x) ) , x )

many people might like it show Extra parentheses, by a flag I would like to disable this feature.

When copying expressions, hp-prime to a document. there always makes editing, the idea is to be nearest to the notation of a math book

When the brackets are present (unneccesary or not), when the cursor is on a bracket it would be useful to highlight both brackets - and the text within - to make it easier to find the other bracket and ensure the scope of the bracketed part matches your intentions.

Stephen Lewkowicz (G1CMZ)
08-26-2016, 06:44 PM
Post: #3
 compsystems Senior Member Posts: 1,201 Joined: Dec 2013
RE: CAS: REDUNDANT PARENTHESES
Is important to highlight, when the entry line allow it. in this case. How I highlight the subparts in the entry line?
08-27-2016, 04:21 AM
Post: #4
 Joe Horn Senior Member Posts: 1,579 Joined: Dec 2013
RE: CAS: REDUNDANT PARENTHESES
(08-26-2016 06:44 PM)compsystems Wrote:  Is important to highlight, when the entry line allow it. in this case. How I highlight the subparts in the entry line?

There are two ways:

(1) Use the touch-screen. Touch one end of the subpart that you wish to highlight, and hold your finger down for more than one second. This sets the "Begin" anchor. Now drag your finger to the end of the desired subpart and release. It is now highlighted.

(2) Move the cursor to the beginning of the desired subpart using either the cursor key or by tapping the screen. Press the Copy key and notice its soft menu. Tap the Begin button to drop the anchor there. Now move the cursor to the end of the subpart and tap the End button. It is now highlighted. To adjust the selection, move the cursor and press either Begin or End again.

<0|ɸ|0>
-Joe-
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