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  • Constructing a Kite (Page 1) Help Me ! Math Is Fun Forum
    The kite is symmetrical about the longer diagonal The longer diagonal bisects the angles at each end of the diagonal Using those you can draw this From that diagram you should now be able to get PR and QS using trigonometry and pythagorean theorem In mathematics, you don't understand things You just get used to them
  • God is true (Page 2) Dark Discussions at Cafe Infinity Math Is Fun . . .
    Think of all the things in pure mathematics (like all of G H Hardy's work and what not) that don't serve a purpose, that doesn't make them any less existent All in all this is an awesome conversation, keep it coming! There are 10 types of people in the world, those who understand binary, those who don't, and those who can use induction
  • maths product (Page 1) Guestbook Math Is Fun Forum
    The definition of product is simply multiplication! So, the product of 6 and 5 would be 30, since 6x5=30, and the product of 12 and 4 would be 48, since 12x4=48 I hope this was what you needed
  • condition number using the infinity norm (Page 1) Computer Math . . .
    The condition number is a measure of the instability of the matrix In plain English it is the measure of how badly it will do when arithmetic is done on it If we say A is the 100 x 100 banded sparse matrix with the diagonals as you specify ( not shown of course ), I get a condition number using the L infinity norm of
  • Estimate the Sales (Page 1) Help Me ! Math Is Fun Forum
    The Coca-Cola Company had sales of $35,123 million in 2010 and $45,998 million in 2014 Use the Midpoint Formula to estimate the sales in 2012 Assume that the sales followed a linear pattern (Source: The Coca-Cola Company) I see two points: (2010, 35,123) and (2014, 45,998) I can use the Midpoint Formula to find the midpoint between the two points Is the midpoint the sales estimate for the
  • A simple test (Page 1) Jokes Math Is Fun Forum
    What is the name of the fifth daughter? Answer: Nunu? NO! Of course not Her name is Mary Read the Question again It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils - Niels Henrik Abel Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking
  • Distance bw two points (Page 1) Help Me ! Math Is Fun Forum
    We will use Pythagoras' theorem to make a formula for the distance AB BC is a horizontal line, so its length can be found by calculating the difference in the x coordinates of the two points CA is a vertical line, so its length can be found by calculating the difference in the y coordinates of the two points So
  • Clock Quotes - I (Page 1) Dark Discussions at Cafe Infinity Math Is . . .
    It's a wise man who understands that every day is a new beginning, because boy, how many mistakes do you make in a day? I don't know about you, but I make plenty
  • proof of arg (z)=arg (z1)+arg (z2)+. . . . . +arg (zn) if z=z1z2z3. . . . . . zn . . .
    "The man was just too bored so he invented maths for fun" -some wise guy
  • Miscellany (Page 31) This is Cool Math Is Fun Forum
    It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils - Niels Henrik Abel Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking





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