why is it undefined when you divide by zero?
194315
In ordinary arithmetic, the expression has no meaning, as there is no number which, when multiplied by 0, gives a (assuming a ≠ 0), and so division by zero is undefined. Since any number multiplied by zero is zero, the expression 00 is also undefined; when it is the form of a limit, it is an indeterminate form.
102763
If a variable is accessed before defining then JS will show it as not defined, and if a variables is defined but not initialized I.e. no values is assigned it to it before accessing, then its undefined. Null means an empty or non-existent value. Null is assigned, and explicitly means nothing.
1207375
A vertical line has undefined slope because all points on the line have the same x-coordinate. As a result the formula used for slope has a denominator of 0, which makes the slope undefined.
962185
There is NO solution, so any non-zero number divided by 0 is undefined. Comment on CarlBiologist's post “Infinity is not a real number, and even if it were...”
209936
At x = 0 the function is undefined, because there is a zero denominator. If x is positive then going closer and closer to zero keeps f(x) at 1. But if x is negative, going closer and closer to zero keeps f(x) at −1. So this function does not have a limit at x = 0.
813523
So if the line is vertical the slope is undefined and if the line is horizontal the slope is 0.
607454
The rules for doing that are defined by the specification: Basically, if the value is undefined , null , "" , 0 , or NaN , it coerces to false ; otherwise, it coerces to true . So ! undefined is true because undefined implicitly converts to false , and then ! negates it.
2817
1/0 is said to be undefined because division is defined in terms of multiplication. a/b = x is defined to mean that b*x = a. There is no x such that 0*x = 1, since 0*x = 0 for all x. Thus 1/0 does not exist, or is not defined, or is undefined.
201702
Answer: Use the equality operator ( == ) Whereas, the null is a special assignment value, which can be assigned to a variable as a representation of no value. In simple words you can say a null value means no value or absence of a value, and undefined means a variable that has been declared but no yet assigned a value.
1409944
Its undefined when there is a little hole in the graph as x approaches something. Defined is when it goes through smoothly, no holes in the graph.
472889
When zero is divided by a number the quotient is zero. Division of a number by zero is not possible. For example, we cannot divide 74 by 0. If we divide any number by 1, the quotient is the number itself.
919263
Solution. Though the expression 1 divided by infinity is undefined, we can see what the expression 1/x approaches as x approaches infinity using limits. We found that the limit of 1/x as x approaches infinity is 0.
180013
Optional parameter takes makes value of parameters to 'undefined', while Default parameters provides default value to parameter if you don't provide it any value. ... Passing 'null' will cause the function to take 'null' as a value of that parameter.
273354
/ Division operator. Divides one numeric expression by another numeric expression, producing a decimal result. This is the case for both INTEGER and INT64 expressions.
471119
Second, there is no value for which the cosine and sine functions are undefined. This is because r is the distant from the origin to the point (x,y) ≠ (0,0) on the terminal ray.
572483
x % 2 gives the remainder after the integer division (when dealing with only integers such as in this case, otherwise a common type) of x/2 . The % is called the modulo operator. Of course when the remainder is 0, the number is even. ... A zero right argument raises the ZeroDivisionError exception.
901652
Nope. (We can't divide by zero, which is of course why this slope value is "undefined".) This relationship is always true: a vertical line will have no slope, and "the slope is undefined" means that the line is vertical.