Symmetry was not actually invented. It was just defined after the observation of similarly figured and shaped objects in nature.
Reflection symmetry, reflectional symmetry, line symmetry, mirror symmetry, mirror-image symmetry, or bilateral symmetry is symmetry with respect to reflection
line symmetry, rotational symmetry, mirror symmetry &liner symmetry
If a function is even ie if f(-x) = f(x). Such a function would be symmetric about the y-axis. So f(x) is a many-to-one function. The inverse mapping then is one-to-many which is not a function. In fact, the function need not be symmetric about the y-axis. Symmetry about x=k (for any constant k) would also do. Also, leaving aside the question of symmetry, the existence of an inverse depends on the domain over which the original function is defined. Thus, y = f(x) = x2 does not have an inverse if f is defined from the real numbers (R) to R. But if it is defined from (and to) the non-negative Reals there is an inverse - the square-root function.
Asymmetry, Radial Symmetry, and Bilateral symmetry.
The current supplied to the filament for heating is defined as the Filament current. whereas When the filament is heated to a high temperature, the electrons are emitted. The flow of electrons form Cathode to anode is the tube Current.
Symmetry was not actually invented. It was just defined after the observation of similarly figured and shaped objects in nature.
The word symmetrical is defined as an object characterized or possessing symmetry. Symmetry is defined as the exact duplication of an object on each side of a dividing line, plane or axis.
In mathematical terms symmetry can depend on the binary operation defined on a set.
Leeches have bilateral symmetry, which means that their bodies can be divided into two equal halves along a single plane. This symmetry is common among many animals with well-defined heads and tails.
Rotational symmetry is defined as the shape or image can be rotated some amount and it still looks the same. The image can be rotated to three different positions and it would look the same.
This is a little bit like asking why a square has four sides. A regular pentagon is defined in such a way as to require that it has 5-fold rotational symmetry.
A defined chin typically refers to a well-defined, prominent, and sculpted chin that enhances the overall symmetry and structure of the face. This feature can create a more balanced profile and is often considered aesthetically pleasing.
The filament supports the anther in a flower.
A scalene triangle. Though it's usually defined as having three sides of different lengths, this is an equivalent definition: all equilateral triangles have three lines of symmetry, and all isosceles triangles have one (no triangle has two lines of symmetry).
The stamen, or to be more specific, the microsporangia.
Filament