Integralen
Integralen
http://www.integrals.com/
Formules
A handy algebra style calculator.
http://www.onlineconversion.com/expressionsolver.htm
Cirkels
Solve area, diameter, and circumference, circle equations.
http://www.onlineconversion.com/circlesolve.htm
Kook- en smeltpunt
Chart of the periodic table of elements, in which you can click on any
element to display the name, number, atomic weight, melting point, and boiling point for the element.
http://www.convertit.com/go/bioresearchonline/calculators/science/periodic_table.asp
Oppervlakte 2
Enter the length and width of an area and output square feet and square meters.
http://www.onlineconversion.com/room_area.htm
Radioactiviteit
Several calculators and converters related to radiation and radioactive activity.
http://www.onlineconversion.com/radiation.htm
Quick Math
Quickmath allows students to get instant solutions to all kinds of math problems, from algebra and equation solving right through to calculus and matrices.
http://www.quickmath.com/
Procenten
Take the guesswork out of percent calculations.
http://www.onlineconversion.com/percentcalc.htm
Rijen
Rijen
http://www.research.att.com/~njas/sequences/index.html