أكاديميا - كولنز - معاجم الجيب العلمية - الرياضيات - انكليزي -فرنسي -عربي الحرف ٦_ s

Academia - Collins - Pocket Scientific Dictionaries - Mathematics - English - French - Arabic Letter 6_ S

sine
sinus m

Sine. Trigonometric function. The sine of an angle in a right-angled triangle is the ratio:

Opposite side / hypotenuse

In triangle ABC

sin 0 = CB /AC = 7/ 25 = 0.28

The value of 0 can now be determined by examining the sine function value table 16.3=0°.

In triangle PQR

sin 23° = PQ/PR

But the sine function value table indicates that -
sin °23=0.391
Hence.

PQ/20 = 0.391
Therefore: 7.82=PQ.

singular
singulier

Anomalous. A square matrix is ​​anomalous if it has no inverse. For example:

The determinant of a skewed matrix is ​​zero, and there are simple linear relationships between the rows and columns of the matrix.

Skewed matrices are associated with sets of linear equations without unique solutions. For example:

3x+6y=1
2x+4y=7
A system with no solutions

3x+6y-9
2x+4y=6
A system with many solutions

skew distribution
données fpl en biais

A skewed distribution. Data that gives a non-symmetrical side shape when represented graphically.

Number of goals
Teams scored this number of goals

The bar chart above represents the frequencies of the different numbers of goals scored by football teams in league matches. The distribution here is skewed because the frequencies do not cluster around a central mean.

Skew lines
FPL obliques

Skew lines. Skew lines are neither parallel nor intersecting.

The line AB that draws the boundary between the floor of the room and its wall in the figure above is a line skewed by the line CD between the wall and the ceiling.