Across
- 3. mathematical expression consisting of two terms, such as 3x + 2y
- 7. a mathematical operation in which the sum of two numbers or quantities is calculated. Usually indicated by the symbol +
- 8. oblique row of squares of the same colour
- 10. boundary of a specific area or geometric figure, esp of a circle
- 15. numerical or constant factor in an algebraic term
- 16. of the ten Arabic numerals from 0 to 9
- 18. number,any number of the form a + ib, where a and b are real numbers and i = √–1
- 22. fraction that has a denominator of a power of ten, the power depending on or deciding the decimal place. It is indicated by a decimal point to the left of the numerator, the denominator being omitted. Zeros are inserted between the point and the numerator, if necessary, to obtain the correct decimal place
- 23. number of times that an event occurs within a given period; rate of recurrence
- 25. closed plane curve every point of which is equidistant from a given fixed point, the centre. Equation: (x –h)2 + (y –k)2 = r2 where r is the radius and (h, k) are the coordinates of the centre; area πr2; circumference: 2πr
- 27. rational number that can be expressed as the sum or difference of a finite number of units, being a member of the set …–3, –2, –1, 0, 1, 2, 3…
- 29. a number) divisible by two
- 31. drawing depicting the relation between certain sets of numbers or quantities by means of a series of dots, lines, etc, plotted with reference to a set of axes
- 34. straight line joining one vertex of a triangle to the midpoint of the opposite side
- 35. of two or more integers or polynomials whose product is a given integer or polynomial
- 37. angle,an angle that is less than 90°
- 38. mathematical operation, the inverse of multiplication, in which the quotient of two numbers or quantities is calculated. Usually written: a ÷ b, , a/b,
- 39. by tens; based on ten; decimal
- 43. solid figure having twelve plane faces. A regular dodecahedron has regular pentagons as faces
- 44. solid consisting of two parallel planes bounded by identical closed curves, usually circles, that are interconnected at every point by a set of parallel lines, usually perpendicular to the planes. Volume base area × length
- 45. number, a number denoting quantity but not order in a set
- 47. relation between two sets that associates a unique element (the value) of the second (the range) with each element (the argument) of the first (the domain): a many-one relation. Symbol: f(x) The value of f(x) for x = 2 is f(2)
- 49. number of distinct single-digit numbers in a counting system, and so the number represented as 10 in a place-value system
- 50. an angle) a trigonometric function that in a right-angled triangle is the ratio of the length of the hypotenuse to that of the opposite side; the reciprocal of sine
- 51. of two or three reference lines used in coordinate geometry to locate a point in a plane or in space
- 52. straight line connecting two points on a curve or curved surface
- 53. geometric solid consisting of a plane base bounded by a closed curve, often a circle or an ellipse, every point of which is joined to a fixed point, the vertex, lying outside the plane of the base. A right circular cone has a vertex perpendicularly above or below the centre of a circular base. Volume of a cone: πr2h, where r is the radius of the base and h is the height of the cone
Down
- 1. or algorism,a recursive procedure whereby an infinite sequence of terms can be generated
- 2. ratio of two expressions or numbers other than zero
- 4. two-dimensional extent of the surface of a solid, or of some part thereof, esp one bounded by a closed curve
- 5. mathematical statement that two expressions are equal: it is either an identity in which the variables can assume any value, or a conditional equation in which the variables have only certain values (roots)
- 6. a common centre
- 9. geometric solid whose six faces are rectangles; rectangular parallelepiped
- 11. factor,a number or quantity that is a factor of each member of a group of numbers or quantities
- 12. system of points whose coordinates satisfy a given equation; a locus of points
- 13. solid having six plane square faces in which the angle between two adjacent sides is a right angle
- 14. general relationship, principle, or rule stated, often as an equation, in the form of symbols
- 16. divisor of a fraction, as 8 in
- 17. section of a curve, graph, or geometric figure
- 19. straight line connecting the centre of a geometric figure, esp a circle or sphere, with two points on the perimeter or surface
- 20. relating to, or expressed in binary notation or binary code
- 21. exponential function, etc
- 24. geometric figure having all its sides of equal length
- 25. coordinates, a system of representing points in space in terms of their distance from a given origin measured along a set of mutually perpendicular axes. Written (x,y,z) with reference to three axes
- 26. result obtained by adding the numbers or quantities in a set and dividing the total by the number of members in the set
- 28. set, a set that includes all the values obtained by application of a given operation to its members
- 30. point at which two arcs of a curve intersect and at which the two tangents are coincident
- 32. extent to which one such line or plane diverges from another, measured in degrees or radians
- 33. trigonometric function that in a right-angled triangle is the ratio of the length of the adjacent side to that of the hypotenuse; the sine of the complement
- 36. symbol representing an unspecified number that remains invariable throughout a particular series of operations
- 38. polygon having ten sides
- 40. or co-ordinate,any of a set of numbers that defines the location of a point in space
- 41. second and third terms of a proportion, as b and c in a/b = c/d
- 42. product of all the positive integers from one up to and including a given integer. Factorial zero is assigned the value of one: factorial four is 1 × 2 × 3 × 4. Symbol: n!, where n is the given integer
- 46. root,the number or quantity whose cube is a given number or quantity: 2 is the cube root of 8 (usually written 3√ 8 or 81⁄3)
- 48. denominator,an integer exactly divisible by each denominator of a group of fractions: , , and have a common denominator of 12