Expressions
Programming language expressions can be broadly classified in three classes:
prefix notation
- Lisp (* (+ 2 3) (expt 4 5))
infix notation
- Fortran (2 + 3) * (4 ** 5)
- TUTOR (2 + 3)(45) $$ note implicit multiply operator
suffix, postfix, or Reverse Polish notation
- Forth 2 3 + 4 5 ** *
Read more about this topic: Comparison Of Programming Languages (syntax)
Famous quotes containing the word expressions:
“The expressions of the poet cannot be analyzed; his sentence is one word, whose syllables are words. There are indeed no words quite worthy to be set to his music. But what matter if we do not hear the words always, if we hear the music?”
—Henry David Thoreau (1817–1862)
“Many expressions in the New Testament come naturally to the lips of all Protestants, and it furnishes the most pregnant and practical texts. There is no harmless dreaming, no wise speculation in it, but everywhere a substratum of good sense. It never reflects, but it repents. There is no poetry in it, we may say, nothing regarded in the light of beauty merely, but moral truth is its object. All mortals are convicted by its conscience.”
—Henry David Thoreau (1817–1862)
“Preschoolers think and talk in concrete, literal terms. When they hear a phrase such as “losing your temper,” they may wonder where the lost temper can be found. Other expressions they may hear in times of crisis—raising your voice, crying your eyes out, going to pieces, falling apart, picking on each other, you follow in your father’s footsteps—may be perplexing.”
—Ruth Formanek (20th century)