It's a common joke that Python makes a great calculator in its interactive mode. You can make it an even better one with the built-in math module, which contains a lot of the same math functions you ...

"print(\"Atan value\",math.atan(7))\n", "print(\"Atan2 value\",math.atan2(7,8))\n", ...

We’ve seen that Python provides us with quite a few conveniences “right out of the box.” Among these are built-in functions, that we as programmers can use—and reuse—in our code with little effort.

But in many cases, it doesn’t have to be an either/or proposition. Properly optimized, Python applications can run with surprising speed—perhaps not as fast as Java or C, but fast enough for web ...