I-beam calculator by Daniel Wedge *** MORE GAMES AND PROGRAMS FOR CASIO CALCULATORS AT *** ******** http://www.student.uwa.edu.au/~wedgey ********* This program will calculate the elevation of the centroid, the area moment of inertia about the centroid and the area of an T-beam given the dimensions of the beam. The number returned for the centroid is the elevation above the point y=0 (indicated). ______________ _ flange thickness -> |_____ _____| | | | | centroid ---------> | | | web thickness -> | | <- | height | | | ___________________ |__| _ ^^^^^ y = 0 ^^^^^ Hopefully that is an informative diagram! Note that the height goes all the way from the bottom to the top of the beam, not from inside the top flange. Symbols: @ Display (triangle sign under programs) -> Assign (the arrow) ^ raise to the power of * multiply / divide (not fraction) Size: 201 bytes. 'T BEAM "WIDTH"? -> B "HEIGHT"? -> H "WEB THICKNESS"? -> W "FLANGE THICKNESS"? -> F "AREA=" BF+W(H-F) -> A@ "CENTROID=" (BF*(H-F/2)+W(H-F)^2/2)/A -> C@ "I=" BF^3/12+BF*(H-F/2-C)^2+W(H-F)^3/12+W(H-F)(C-(H-F)/2)^2@ Norm "FINISHED"