Nice! However,, now I have to figure out what this does:
sq=: 13 :'(,.|."1),|. y'
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Aai
Sent: Sunday, March 8, 2015 4:28 AM
To: [email protected]
Subject: Re: [Jprogramming] J Tech - Grade 1
More compact:
sq=: 13 :'(,.|."1)(,|.) y'
Linda Alvord schreef op 08-03-15 om 09:02:
This didn't help:
load 'debug/dissect'
sq=: 13 :'(y,.|:|.|:y),(|.y),.||.|:|.|:y'
sq
(] ,. [: |: [: |. |:) , |. ,. [: | [: |. [: |: [: |. |:
((] ,. [: |: [: |. |:) , |. ,. [: | [: |. [: |: [: |. |:)i.3 6
0 1 2 3 4 5 5 4 3 2 1 0
6 7 8 9 10 11 11 10 9 8 7 6
12 13 14 15 16 17 17 16 15 14 13 12
12 13 14 15 16 17 17 16 15 14 13 12
6 7 8 9 10 11 11 10 9 8 7 6
0 1 2 3 4 5 5 4 3 2 1 0
dissect'((] ,. [: |: [: |. |:) , |. ,. [: | [: |. [: |: [: |. |:)i.3
6'
dissect'((] ,. [: |: [: |. |:) , |. ,. [: | [: |. [: |: [: |. |:)i.3
6'
value error
|value error: wd
| wd DISSECT
|value error: wd
| wd'timer 0'
Linda
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Linda
Alvord
Sent: Sunday, March 8, 2015 3:36 AM
To: [email protected]
Subject: Re: [Jprogramming] J Tech - Grade 1
I'm working on the Grade 3 Handbook and s is a very messy verb. Can
anyone simplify it so it works with both images A and B.
load 'viewmat'
RGB=:0 255{~#:i.8
GRB=:1 0 2{"1 RGB
]A=:*/~>:i.11
]B=:%/~>:i.11x
sq=: 13 :'(y,.|:|.|:y),(|.y),.||.|:|.|:y'
GRB viewmat sq A
GRB viewmat sq B
Maybe I'm not awake enough. Linda
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Linda
Alvord
Sent: Thursday, September 18, 2014 3:46 AM
To: [email protected]
Subject: [Jprogramming] J Tech - Grade 1
As I posted earlier, I in Sepstember I an collecting as many ideas as
possible for actual specific examples, models, code or other ways to
use J with the purpose of further the children's understanding of the
mathematics that they will be learning during the year.
Here is my first idea. In a J environment JHS the students could
explore the following ideas and extemd them in creative ways in an ways
they could.
The focus THis on counting, shapes, patterns, colors and addition tables.
Example: This code works in jqt. It works expecially well in the
beta J803. The last remaining problems are gone. If students had J
they could make many different images and go in many directions with
only this on start. Experimentation is one of the keys to encouraging
learning. The code also can be used in jqt and the images appear
separately.
load 'viewmat'
]GRB=:1 0 2{"1 (#:i.8){0 255
GRB viewmat i.16
]C=:i.12
GRB viewmat C
]D=:3 4$i.12
GRB viewmat D
]M=:5 3$i.15
GRB viewmat M
GRB viewmat 7 3$i.21
]B=:4 4$i.16
GRB viewmat B
GRB viewmat |: B
GRB viewmat |.|:B
]T=:+/~i.16
GRB viewmat T;'T'
Grade 1 Overview
Operations and Algebraic Thinking
* Represent and solve problems involving addition and subtraction.
* Understand and apply properties of operations and the relationship
between addition and subtraction.
* Add and subtract within 20.
* Work with addition and subtraction equations.
Number and Operations in Base Ten
* Extend the counting sequence.
* Understand place value.
* Use place value understanding and properties of operations to add
and subtract.
Measurement and Data
* Measure lengths indirectly and by iterating length units.
* Tell and write time.
* Represent and interpret data.
Geometry
* Reason with shapes and their attributes.
Mathematical Practices
1. Make sense of problems and persevere in solving them.
2. Reason abstractly and quantitatively.
3. Construct viable arguments and critique the reasoning of others.
4. Model with mathematics.
5. Use appropriate tools strategically.
6. Attend to precision.
7. Look for and make use of structure.
8. Look for and express regularity in repeated reasoning.
Please think about the first grades you know or remember and
contribute and ideas you think might be useful.
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http://www.jsoftware.com/forums.htm
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--
Met vriendelijke groet,
@@i = Arie Groeneveld
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For information about J forums see http://www.jsoftware.com/forums.htm
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