I just realized fhat programming is just all math...

[davidthefat]

LOL today we learned functions and mapping in Geometry today, and it looked just like C++ functions and arguments...

Geometry/Algebraic Function:

f(x)=3x+10
x = 10

3(10)+10

C++

void function(int x)
{
x = 3 * x + 10;
};

Interesting...

[Moosader]

Was today your first day in Algebra or something? o_O

[Falco Girgis]

Pre algebra?

[davidthefat]

Was today your first day in Algebra or something? o_O

Geometry, and last few weeks of it too

[Bakkon]

pretty fhat bro

[K-Bal]

Your function would not make any difference because you don't use a reference or pointer and you are not returning anything

[LuciDreamTheater]

I just learned about another link between math and programming too:

In my C++ class back in '07, when talking about cin and cout, my professor mentioned something called a source and a sink. Oddly enough, in my vector calculus class, when we talked about vector fields, the terms source and sink were also used. There really is a strong connection between the two fields, probably more than you even realize.

[davidthefat]

Your function would not make any difference because you don't use a reference or pointer and you are not returning anything

I thought you dont have to return anything if its void?

[Falco Girgis]

Your function would not make any difference because you don't use a reference or pointer and you are not returning anything

I thought you dont have to return anything if its void?

The point is that mathematical functions have return values.

When you graph a function of one variable, you're saying y = f(x). So f(x) must return something.

[Bakkon]

Your function would not make any difference because you don't use a reference or pointer and you are not returning anything

I thought you dont have to return anything if its void?

Though it's not a very useful function in it's current state.

Code: Select all

#include <iostream>
using namespace std;

int main()
{
   cout << "Solve for f(x) when x = 5." << endl;
   cout << funcMe(5) << endl;

   return 0;
}

int funcMe(int x)
{
   return 3 * x + 10;
}

K-Bal was saying it would do nothing to the remainder of the program as the solution would disappear after leaving the scope of the function.

[MarauderIIC]

Yeah I can double-major in CS and math with like three more classes.

[dejai]

Kinda off topic but it is so weird to me how yanks call it math. When did you guys drop the plural? Its called Mathematics after all it would sound absurd to call it Mathematic. I suppose its a bit like an conversion from a double to an int you just lose all decimal points.

[wtetzner]

Kinda off topic but it is so weird to me how yanks call it math. When did you guys drop the plural? Its called Mathematics after all it would sound absurd to call it Mathematic. I suppose its a bit like an conversion from a double to an int you just lose all decimal points.

Hmm, I always thought math was short for mathematics. Mathematic is an adjective, not the singular form of mathematics (http://dictionary.reference.com/browse/mathematic).

[Bakkon]

Kinda off topic but it is so weird to me how yanks call it math. When did you guys drop the plural? Its called Mathematics after all it would sound absurd to call it Mathematic. I suppose its a bit like an conversion from a double to an int you just lose all decimal points.

Correct, it is a truncation. But when you truncate, you take off everything at the end, not all but one, right?

[MarauderIIC]

Except that truncation of a noun is a noun, and truncation of an adjective is an adjective. And since math is a truncation of mathematics, not a truncation of mathematical (mathematic seems to only be a word according to some), it's a noun.