• Complex math formulas on whiteboard. Mathematics and science with economics
    id: 99613287
  • Library
    id: 43474204
  • Blackboard inscribed with scientific formulas and calculations in physics and mathematics.
    id: 200118693
  • The universe within. Silhouette of a man inside the universe, physical and mathematical formulas.. The concept on scientific and philosophical topics. Elements of this image furnished by NASA.
    id: 214624906
  • wise man writing mathematical problem solution
    id: 186736380
  • Transparent ruler
    id: 48798855
  • close up of sudoku game and yellow pencil
    id: 14471542
  • Numbers
    id: 5717850
  • Blue plastic protractor ruler
    id: 68080968
  • Beautiful Spirals in Nature - Phi, Golden Spiral, Fibonacci
    id: 83591388
  • Displaying faint gray algebraic equations covering whiteboard, with polynomial and radical notation
    id: 1576647725
  • Mathematical equations written in a notebook. Calculator app.
    id: 128727998
  • Mathematics and engineering formula
    id: 89353096
  • 19th Century map of Roman Italy
    id: 94622719
  • The concept of the human brain. The right creative hemisphere versus the left logical hemisphere. Education, science and medical abstract background.
    id: 219828762
  • outlier or nonconformist concept
    id: 63254011
  • Beautiful Golden Ratio Spirals in Nature
    id: 99146391
  • Gaussian or bell curve on a blackboard
    id: 34937835
  • Transparent triangle ruler
    id: 48798934
  • model and observation data correlation graph
    id: 142152278