Submitted reading questions for 02/19/2014

CS 121B (CS1), Spring 2014

sid	q1	categ	annot
9803	Why don't we use moodle
9804	Are if/else expressions the basis of most advanced programming?
9807	Is it better to use an elif statement or a nested else-if statement? Or does it not really matter?
9815	What would happen if there is an imaginary number in the condition? Like the square root of -1?
9818	Is elif a way to nest more than one if statements?
9826	What is a boolean function?
9831	Does Python have an xor operator?
9832	Does Python have an xor operator?
9835	What is the difference between a Boolean expression and Boolean function?
9837	Is there a benefit to embedding another else, if statement rather than using elif?
9838	Why is the order of precedence for logical operators 1)not 2)and 3)or
9841	I'm pretty confused about "not" and when it is used. I think maybe it had to do with how it was defined in the reading, could you go over a less confusing definition than "the not operator negates a boolean expression, so not x > y is true if x > y is false, that is, if x is less than or equal to y"? And maybe give an example?
9842	How often do we use Boolean expressions?
9843	In what way are Boolean values useful while programming?
9844	I don't really understand what makes a boolean expression a boolean expression. What signifies to the computer that that is happening?
9846	How much "nesting" can there be?
9847	Is there a limit to the number of times functions or conditionals can be nested? If not, is excessive nesting considered "bad form?"
9848	So the only purpose of chained conditionals is to shorten and simplify code?
9850	For what did Boole originally develop his algebra for?

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