This smells like homework, so I'll only give you pseudo-code:
decimal returnLargest(decimal a, decimal b)
is a > b ? then, return a, else, return b;
The function already exists in PHP and is even called max(); Otherwise use: function max ($one, $two) { return $one > $two ? $one : $two; }
Function calling is where your code branches off to execute a function and then returns to the instruction following the call. The function may also return a value that can be stored and/or processed by the code that called it. Functions allow common code to be separated from the code that uses the common code, thus reducing maintenance (the code in the function is written once, rather than every time it is required).
strlen is the C library function that accepts a pointer to a char array and returns an integer specifying the number of characters (in bytes) of the array. This function is usually not used any more, because it does not support multi-byte characters, such as UTF-8.
void printStarts (void);
int find(String str, double d);
float test(int, char);
The function already exists in PHP and is even called max(); Otherwise use: function max ($one, $two) { return $one > $two ? $one : $two; }
Function calling is where your code branches off to execute a function and then returns to the instruction following the call. The function may also return a value that can be stored and/or processed by the code that called it. Functions allow common code to be separated from the code that uses the common code, thus reducing maintenance (the code in the function is written once, rather than every time it is required).
strlen is the C library function that accepts a pointer to a char array and returns an integer specifying the number of characters (in bytes) of the array. This function is usually not used any more, because it does not support multi-byte characters, such as UTF-8.
void printStarts (void);
int find(String str, double d);
double calcAreaRect (double a, double b);
When a function declares it returns void, it means it does not return anything. Sometimes the function doesn't need to return anything, so using void is convenient. In C: using voidinstead of parameters means 'there's no parameters'
The "plus sign" (+) is an operator that, by default, takes the left and right operands as parameters, and returns the sum of both operands as the return value.
The greatest integer function, often denoted as (\lfloor x \rfloor), returns the largest integer that is less than or equal to the given value (x). For example, (\lfloor 3.7 \rfloor) equals 3, while (\lfloor -2.3 \rfloor) equals -3. This function effectively "rounds down" any non-integer value to the nearest whole number.
To calculate the derivative of a mathematical function using the scipy differentiation function, you can use the scipy.misc.derivative function. This function takes the mathematical function, the point at which you want to calculate the derivative, and the order of the derivative as input parameters. It then returns the numerical value of the derivative at that point.
Not necessarily. A function that accepts one or more arguments may process those arguments but need not return any value to the caller. In this case the function simply returns void.