Let Wolfram Alpha evaluate function for natural numbers only
73846
Tell Wolfram Alpha that a variable is a natural number
116410
How to return the value of Automatic when it is used in a Mathematica function?
66066
Is there a way to prevent N from being applied to all parts of an expression
97970
Best way to make Java's modulus behave like it should with negative numbers?
101512
Is there an numeric arithmetic with a single operator?
5803
Produce an explicit bijection between rationals and naturals?
7473
How am I supposed to tell if a number is divisible by $13$ (I need a shortcut)?
21912
Evaluate function on a grid
107694
How to test if a number is a primitive root?
59214
Evaluating Mathematical Expressions in Lua
30961
How can I type-check the arguments of a Mathematica function?
48554
How to not display number as exponent?
111266
Function that returns $0$ for all negative values
69426
Checking if the roots of a function are real
75229
Can there be a function that's even and odd at the same time?
32511
How do I evaluate only one step of an expression?
124890
Divisibility within a block of natural numbers