Polygons related to the golden ratio

Algebraic constructions of regular polygons

Kepler Triangle, Pythagorean Theorem and Golden Ratio

Functional equations and orthogonality

Extrema of functions

Divisibility of integers

Elementary determination of the extrema of a function y =(a_1x^2 + b_1x + c_1)/(a_2x^2 + b_2x + c_2)

Some applications of linear algebra in science and technology

Similarity of matrices

Hosszú's functional equation

Characterizations of inner product spaces

Cauchy functional equations

Construction of a regular heptadecagon

Trigonometric functional equations

Construction of a regular heptagon

Some applications of ordinary differential equations

Approximate computations of the values of elementary functions

Feuerbach's circle and the Simson line

Fundamentals of propositional logic

Undergraduate and graduate studies of geology at the Faculty of Science of the University in Zagreb

Construction of a regular pentagon

Vector and matrix norms

Cyclic and tangential quadrilaterals

Ceva's, Menelaus' and van Aubel's theorem

Undergraduate University Programme in Mathematics Education

Functions in the teaching of mathematics - motivational examples from geology

Axiomatic building of geometry

Commuting maps

Definitions in the teaching of geometry

Application of mathematics in geology

Reverse of van Aubel theorem

The definition and the name of a class of trapezoid (or why not isosceles trapezoid?)

Four characteristic points of the triangle

Some theorems related to the triangle

Areas

Fundamental theorem of algebra

Circles

Cayley-Dickson construction

One method of verifying knowledge of elementary geometry

Octonions

Quadratic functionals

Jensen and quadratic functional equation

Learning, teaching and discovering geometry by geometric constructions carried out using a program of dynamic geometry

Solving algebraic equations

Application of the Rasch model to the analysis of the entrance exams

Classification exam on Department of Mathematics

System of equations

Functionals on modules over normed *-algebras possessing an approximate identity

H*-algebras and Hilbert H*-modules

Finsler-Hadwiger inequality and its consequences