< random >
He it is Who sendeth down water from the sky, whence ye have drink, and whence are trees on which ye send your beasts to pasture. 10 And thereby He brings forth crops and olives, palms and vines, and all the fruits. Surely, in this there is a sign for a nation who think. 11 He has subjected for you the night and the day and the sun and the moon and the stars have also been made subservient by His command. Surely there are Signs in this for those who use their reason. 12 And whatsoever He has created for you on this earth of varying colours [and qualities from vegetation and fruits, etc. (botanical life) and from animal (zoological life)]. Verily! In this is a sign for people who remember. 13 It is He who subjected to you the sea, so that you may eat its fresh seafood and bring forth from it ornaments to wear. You see the ships cleaving through it. All this, so that you may seek His bounty and feel grateful. 14 And He has cast great mountains in the earth lest it might be convulsed with you, and rivers and roads that you may go aright, 15 And marks and sign-posts; and by the stars (men) guide themselves. 16 Is He then Who createth as him who createth not? Will ye not then remember? 17 And if ye would count the favours of Allah ye could not compute them; verily Allah is Forgiving, Merciful. 18 And Allah doth know what ye conceal, and what ye reveal. 19 Those whom they call upon beside Allah have created nothing; rather, they themselves were created; 20 Dead are they, not alive; and they perceive not when they will be raised up. 21
< random >
ملاحظات وتعليمات
Notes and Instructions
كيف تعمل منظومة تمارين الحفظ؟ عند أدنى مستوى 0، تكون كل الكلمات ظاهرة. بينما يُخفي أعلى مستوى 9 كل الكلمات. فكيف تعمل المستويات المتوسطة، مثل 3، على سبيل المثال؟ قد تعتقد بأن المنظومة تخفي 3 من كل تسع كلمات بدقة. ليس تماما! في المستوى 3، لكل كلمة فرصة اختفاء بنسبة 3 من 9، و6 من 9 لتكون ظاهرة. بمعنى آخر، من الممكن، ولكن باحتمال شبة معدوم، أن تكون جميع كلمات المستوى 3 مخفية، أو أن تكون جميعها ظاهرة! وكذلك أيضًا، ففي المستويات المتوسطة، وبما يتناسب مع مستوى الصعوبة، يمكن أن تكون المخابئ غير كاملة أو شفافة جزئيًا بحيث تظهر الكلمات جزئيًا تحتها.
How does the memorization exercise algorithm work? At the lowest level 0, all words are visible. While the highest level 9 hides all words. What about at mid-level, like 3, for example? You might think that the algorithm hides precisely 3 out of every nine words. Not quite! At level 3, each word has a 3 out of 9 chance to hide, and 6 out of 9 to be visible. In other words, it is possible, but highly unlikely, for all words at level 3 to be hidden, or, that all of them to be visible! Also, at mid-levels, and in proportion to the difficulty level, hideouts can be partially incomplete or transparent so that words may be partially visible underneath.