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Fereydoon_Shekofte

Mr. Fereydoon Shekofte

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15 years, 353 days

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I Wish To Become As Famous As Albert Einstein

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These are replies submitted by Fereydoon_Shekofte

Very good news...

Fereydoon_Shekofte 223
March 05 2017

I wish maple become available there as soon as possible 

I admire all of your efforts on maplepri...

Fereydoon_Shekofte 223
January 17 2017

nice going one man

i fixed my mistake !...

Fereydoon_Shekofte 223
January 03 2017
0 8

@Rouben Rostamian  

thanks a lot for your accompany Mr Rostamian !
without your help i was too depressed on this problem !
yes as you mentioned i selected a bad coordinate for tilt angel !
now in this new worksheet i fixed and the formoula in this manner looks so much better !

Approaching by trigonometry methods ?...

Fereydoon_Shekofte 223
January 02 2017
0 0


 

Visualization of points of two circle intersection in 3d

 
> 

Explore(plots[display](plots[spacecurve]({[sin(t)*cos(Latitude), cos(t)*cos(Latitude), sin(Latitude), color = red], [sin(t)*sin(tilt), cos(t), sin(t)*cos(tilt), color = blue]}, t = 0 .. 2*Pi, scaling = constrained, thickness = 4, labels = [x, y, Latitudez], labeldirections = [horizontal, horizontal, vertical], axes = frame), plottools[point]([sin(Latitude)*tan(tilt), cos(Latitude)*sqrt(1-(tan(Latitude)*tan(tilt))^2), sin(Latitude)], color = yellow, symbol = solidsphere, symbolsize = 30), plottools[point]([sin(Latitude)*tan(tilt), -cos(Latitude)*sqrt(1-(tan(Latitude)*tan(tilt))^2), sin(Latitude)], color = yellow, symbol = solidsphere, symbolsize = 30)), parameters = [tilt = 0 .. Pi, Latitude = -(1/3)*Pi .. (1/3)*Pi], initialvalues = [tilt = .409, Latitude = 0])

Arc length of day and night may calculated just by trigonometry functions ! (no radical)

 

If*the*Day = 2*arccos(tan(Latitude)*tan(tilt)) Then the Night=2*Pi-2*arccos(tan(Latitude)*tan(tilt))

> 

Explore(plot(2*arccos(tan(Latitude)*tan(tilt)), Latitude = -(1/2)*Pi .. (1/2)*Pi, scaling = constrained, labels = [Latitude, "arc of night"], view = [-2 .. 2, 0 .. Pi]), parameters = [tilt = 0 .. (1/2)*Pi], initialvalues = [tilt = .409])

Plot of Day and Night ratio :

> 

Explore(plot(arccos(tan(Latitude)*tan(tilt))/(Pi-arccos(tan(Latitude)*tan(tilt))), Latitude = -(1/2)*Pi .. (1/2)*Pi, scaling = constrained, labels = [Latitude, "ratio of day and night"], view = [-2 .. 2, 0 .. Pi]), parameters = [tilt = 0 .. (1/2)*Pi], initialvalues = [tilt = .409])
> 

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Download shekofte002.mw

 

Your assistance was so great...

Fereydoon_Shekofte 223
December 27 2016
0 2

@Rouben Rostamian  

Not only me but a lot of people appreciate you !

AMAZING !...

Fereydoon_Shekofte 223
August 25 2016

I THINK because of his great SOUL !

I LIKE HIM 

maple feature HIGHLIGHTING...

Fereydoon_Shekofte 223
February 19 2016

amazing !

i wish to see more researchs by members that highlight special features of maple , and make them more expandable ?

also i think having a BADGE for such efforts is Encouraging

Maple Beta Testing history...

Fereydoon_Shekofte 223
December 28 2015

I wish the year 2016 become the Landmark of intercommunicating development of maple .

also i interested to know is this the first time that maple will be estimated in BETA TEST STAGE ?

eruditely...

Fereydoon_Shekofte 223
April 17 2015

although your topic is beyond of my ability , but i hope by following works of mathematicans like you , propitiously , i can reach to some degree

I LOVE YOU Markiyan...

Fereydoon_Shekofte 223
February 18 2015

@Markiyan Hirnyk 

i guess if other plotters join in Valentine contest , in the end we have a full set of human limbs 3d models <3

 

another art

screenshot...

Fereydoon_Shekofte 223
February 16 2015
0 0

may you show us a screenshot ?

propitious...

Fereydoon_Shekofte 223
February 13 2015

I just wondered why ? did this happen too late !

 

anyone has any idea on these too ?...

Fereydoon_Shekofte 223
December 19 2014

opportune updates , good use of these feature cause a good environment for ourselves .

 

1) i think there is too few tags in "Popular Tags" frame , personaly i expect in every click on new pages this frame contains Random Tags !

2) also in Tags section page i expect the list of all available tags in sorted alphabetical order but i think it is an uncomplet list !

thanks a lot for your attention dear moderator of mapleprimes ...

with all good wishes , shekofte

 

screenshot

knowledge on the structure of things...

Fereydoon_Shekofte 223
October 20 2014
0 0

@acer 

thanks for clarification of the subject ! really good informations !

right! I want only the bytes used to store a thing internally .

yes as you described the trick , by knowledge on the structure of things and subdividing of them to their elements , if each element always have constant size is so easy !

anyway it needs enough skill in maple ...

 

one approach...

Fereydoon_Shekofte 223
October 20 2014
0 0

@Markiyan Hirnyk  @Alejandro Jakubi

thanks a lot for your demonstrations ...

bytesused seems fine !

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