







What does 2xy mean? 
20111207 

dana pose la question : I don't know what is 2xy what does that mean? is it 2x+2y or 2x times y
Please help! thank you for your time!! :) Penny Nom lui répond. 





pi/2 + 12/13 
20110524 

Jen pose la question : If you have (pi/2) and you want to add it to (12/13), how would you go about it? Chris Fisher lui répond. 





Who invented the division symbol? 
20061229 

Alex pose la question : Who invented the division symbol? Penny Nom lui répond. 





express the number 100 using the same figure 6x 
20060617 

A student pose la question : express the number 100 using the same figure 6x Stephen La Rocque lui répond. 





Right angles 
20060125 

AshLee pose la question : I was recently given a challenge in my Algebra class. My teacher wanted to know about a right angle. He said he would give five bonus points to the person that could bring in information. (I know five bonus points may not seem like a lot but in this class, they are.) I looked on this site and I found out why it was called a right triangle, but my teacher want to know where did that theory come from. I was wondering too... not just because of the bonus points. Penny Nom lui répond. 





A division symbol 
20040818 

William pose la question : i was wondering what the mathematical name for this division sign (÷). Penny Nom lui répond. 





Why is the letter J used for the integers? 
20040113 

Amanda pose la question : Why is the letter J used to represent intergers as a symbol? Penny Nom lui répond. 





< and > 
20020830 

Kelsey pose la question : What is the origin of the greater (>) than and less (<) than signs? Harley Weston lui répond. 





Why do integers have the symbol of Z? 
20020111 

Stephanie pose la question : Why do integers have the symbol of Z? Natural numbers have the symbol of N, whole numbers have the symbol of W. Our professor has asked us to find out why the letter Z is represented for integers. Penny Nom lui répond. 





Division symbol 
20011212 

Amanda pose la question : What is the name of the symbole used in a long divison problem that seperates the two factors? It looks like a little house. Penny Nom lui répond. 





Sigma 
20010331 

A student pose la question : What does the Sigma symbol mean in mathematics? Penny Nom lui répond. 





The "goesinta" box 
20010207 

Bridget pose la question : We are looking for the "proper" name of the "box" that is drawn around the dividend on a division problem: ___ 3)12 It has always been a family joke to call it the "goesinta" box, but a search of several reference sources hasn't yielded an answer  This is a question of curiosity rather than a question for homework. Claude Tardif lui répond. 





Infinity Symbol 
19990713 

Mark E. Kelly pose la question : There is a symbol that looks like a sideways 8 that is used to represent infinity. Does it have a name? Doug Farenick and Penny Nom lui répond. 





The origin of angles 
19980224 

Marc Poulin pose la question : I'm currently teaching angles to students in grade 10 and I've been asked what's the origin of the terms degrees, radians and gradians. I know that the radians come from the sexagesimal numerical system of the Babylonians but my kids wanted to know dates and persons who would have brought these terms first. Harley Weston lui répond. 





The Division Bracket. 
19970409 

Judy Riley pose la question : A fellow teacher recently asked if I remembered the exact word for a division bracket (not the symbol with dots, the horizontal line in a fraction, or a solidus). I couldn't. Can you help? Walter Whiteley and Harley Weston lui répond. 





Could you tell me the name for the bar in a division problem? 
19961021 

Linda pose la question : Could you tell me the name for the bar in a division problem. Not the line with dots on either side but the line that divides the two numbers? My name is Linda. I am asking for my niece who is in 8th grade. Chris Fisher lui répond. 

