New posts in Expression Test

how to write a condition for all elements of a list

About shorthand notation for conditional pattern (Paul Wellin "Essentials of Programming in Mathematica")

Checking if a word exists

Check if number is irrational/transcendental

Test if a list is a constant integer multiple of another list

A hack for aggressive type-checking?

Checking if all the variables are present in the defined function

Using OddQ and EvenQ in piecewise functions: Buggy?

Is it OK that SameQ considers expressions identical, although they have different structure?

How to test whether a function is positive over the entire range of an interval?