[VicPiMakers Projects] Challenge 2: Confirm preliminary results
Michelle Wiboltt
michellewiboltt at outlook.com
Sun Nov 15 03:31:50 EST 2020
What do techies think about how to “fill” the zero and/or is it necessary and how do u/they think space travel can put garbage in space?
Thx
Michelle Wiboltt
www.elb1b69.net
604-612-2505
________________________________
From: Projects <projects-bounces at vicpimakers.ca> on behalf of James Briante <briantej at gmail.com>
Sent: Sunday, November 15, 2020 12:25:30 AM
To: Talk about Raspberry Pi / embeded projects <projects at vicpimakers.ca>
Subject: Re: [VicPiMakers Projects] Challenge 2: Confirm preliminary results
Hi Mark,
Congratulations for 100% on Challenge 2 (Bonus helped!)
I’ve used your times for (t1, t2) to compute total distance covered.
P = 2p1 + p2
= at12 + vt2 , using your values gives
= 10(1.17)2 + 35(6.66)
= 246.789, past desired position (p =240)
Check your solution to the quadratic equation.
Jim
On Sat, Nov 14, 2020 at 9:29 PM Mark G. <vpm at palaceofretention.ca<mailto:vpm at palaceofretention.ca>> wrote:
Hi Jim,
Thanks for the corrections. Here are my updated results
with some trial solutions for outputs 9 and 10.
I differ in output 10.
$ echo 33009 9002 11 | ../bin/cnc
Input:
RegP: 33009 bits: 1000000011110001
RegM: 9002 bits: 0010001100101010
RegS: 11 bits: 00001011
Output #1: 241 (position) bits: 11110001
Output #2: 35 (velocity) bits: 00100011
Output #3: 2 (accel.) bits: 00000010
Output #4: 10 (time) bits: 00001010
Error status:
Position error.
Velocity ok.
Acceleration error.
Time error.
Error corrected:
Output #5: 240 (position) bits: 11110000
Output #6: 35 (velocity) bits: 00100011
Output #7: 10 (accel.) bits: 00001010
Output #8: 9 (time) bits: 00001001
Error status:
Position ok.
Velocity ok.
Acceleration ok.
Time ok.
Output #9:
Travel time t: 6.93 (s)
final velocity v: 69.28 (cm/sec)
Output #10:
Testung t1 solution 1: 12.83 (s)
Invalid t2 with t1 solution 1: -16.66
trying t1 solution 2: 1.17 (s)
Valid t2 with t1 solution 2: 6.66 (s)
Solution t1: 1.17 (s)
Solution t2: 6.66 (s)
Output #11:
Solutions involving a negative amount for t2 are not
physically possible without time travel.
On 2020-11-12 8:00 p.m., James Briante wrote:
>
>
> Mark -a big thanks for pointing out the errors! v & t in the
> Callenge2.pdf are typing errors. I should have included the actual
> output screen (see attachment) with the other files. I've blacked out
> the answer to Output #11.
>
> Things have been quiet on project talk re: challenge 2. Could these
> errors be the reason?
>
> I don't have a read on what I should do for output #10. Should I provide
> the solution to the quadratic equation?
>
> Jim
>
>
> On Wed, Nov 11, 2020 at 5:09 PM Mark G. <vpm at palaceofretention.ca<mailto:vpm at palaceofretention.ca>
> <mailto:vpm at palaceofretention.ca<mailto:vpm at palaceofretention.ca>>> wrote:
>
> Hi Jim,
>
> I've completed up-to output #8 of the challenge and have
> some discrepancies with your challenge specification.
> Specifically, velocity/acceleration error switch, differing
> values for uncorrected time (t) and velocity (v).
>
> Your values:
> Input Data: 33009,9002,11 (initial values - RegP, RegM, RegS)
> Output #1: 241 (value of p, transferred from RegP)
> Output #2: 186 (value of v, transferred from RegM)
> Output #3: 10 (value of a, transferred from RegM)
> Output #4: 220 (value of t, transferred RegM)
> --------------------------------------------------------------------------------
>
> Output # 5 to #8 – values of p, v, a, and t with corrections
> --------------------------------------------------------------------------------
>
> Output #5: 240 (p)
> Output #6: 35 (v)
> Output #7: 10 (a)
> Output #8: 9 (t)
>
> My values:
>
> $ echo 33009 9002 11 | ../bin/cnc
> Input:
> RegP: 33009 bits: 1000000011110001
> RegM: 9002 bits: 0010001100101010
> RegS: 11 bits: 00001011
> Output #1: 241 (position) bits: 11110001
> Output #2: 35 (velocity) bits: 00100011
> Output #3: 2 (accel.) bits: 00000010
> Output #4: 10 (time) bits: 00001010
> Position error.
> Velocity ok.
> Acceleration error.
> Time error.
> Error corrected:
> Output #5: 240 (position) bits: 11110000
> Output #6: 35 (velocity) bits: 00100011
> Output #7: 10 (accel.) bits: 00001010
> Output #8: 9 (time) bits: 00001001
> Position ok.
> Velocity ok.
> Acceleration ok.
> Time ok.
>
> What do you think?
>
> Mark
>
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