< random >
We have placed constellations in heaven and have beautified it for beholders, 16 and We have made them secure against every satanic force accursed 17 Except one who steals a hearing and is pursued by a clear burning flame. 18 And We spread out the earth, and placed mountains as anchors in it, and in it grew all things by a proper measure. 19 and there appointed for you livelihood, and for those you provide not for. 20 And there is not a thing but with Us are its treasuries, and We do not send it down except in a known measure. 21 And We loose the winds fertilising, and We send down out of heaven water, then We give it to you to drink, and you are not its treasurers. 22 And indeed it is We Who give life and it is We Who cause death, and We are the Inheritors. 23 And certainly We know those of you who have gone before and We certainly know those who shall come later. 24 Assuredly it is thy Lord Who will gather them together: for He is perfect in Wisdom and Knowledge. 25
< 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.