Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -9 to 9. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -3π to 3π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -9 to 9. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -10 to 10. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -3π to 3π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -10 to 10.…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -1 to 1. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -4π to 4π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -1 to 1. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -2 to 2. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -4π to 4π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -2 to 2. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -3 to 3. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -4π to 4π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -3 to 3. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -4 to 4. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -4π to 4π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -4 to 4. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -5 to 5. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -4π to 4π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -5 to 5. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -6 to 6. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -4π to 4π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -6 to 6. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -7 to 7. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -4π to 4π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -7 to 7. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -8 to 8. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -4π to 4π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -8 to 8. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -9 to 9. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -4π to 4π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -9 to 9. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -10 to 10. The increments on the x-axis are marked in intervals of 1/3π.

Trigonometry Grid With Domain -4π to 4π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -10 to 10.…

Illustration of a trigonometric grid with a domain from -π to π and a range from -1 to 1. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -π to π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -π to π and a range from -1 to 1. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -2 to 2. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -π to π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -π to π and a range from -2 to 2. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -3 to 3. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -π to π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -π to π and a range from -3 to 3. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -4 to 4. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -π to π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -π to π and a range from -4 to 4. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -5 to 5. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -π to π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -π to π and a range from -5 to 5. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -6 to 6. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -π to π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -π to π and a range from -6 to 6. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -7 to 7. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -π to π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -π to π and a range from -7 to 7. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -8 to 8. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -π to π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -π to π and a range from -8 to 8. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -9 to 9. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -π to π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -π to π and a range from -9 to 9. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -10 to 10. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -π to π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -π to π and a range from -10 to 10. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -1 to 1. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -2π to 2π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -1 to 1. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -2 to 2. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -2π to 2π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -2 to 2. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -3 to 3. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -2π to 2π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -3 to 3. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -4 to 4. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -2π to 2π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -4 to 4. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -5 to 5. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -2π to 2π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -5 to 5. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -6 to 6. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -2π to 2π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -6 to 6. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -7 to 7. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -2π to 2π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -7 to 7. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -8 to 8. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -2π to 2π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -8 to 8. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -9 to 9. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -2π to 2π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -9 to 9. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -10 to 10. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -2π to 2π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -10 to 10.…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -1 to 1. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -3π to 3π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -1 to 1. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -2 to 2. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -3π to 3π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -2 to 2. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -3 to 3. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -3π to 3π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -3 to 3. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -4 to 4. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -3π to 3π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -4 to 4. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -5 to 5. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -3π to 3π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -5 to 5. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -6 to 6. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -3π to 3π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -6 to 6. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -7 to 7. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -3π to 3π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -7 to 7. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -8 to 8. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -3π to 3π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -8 to 8. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -9 to 9. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -3π to 3π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -9 to 9. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -10 to 10. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -3π to 3π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -10 to 10.…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -2 to 2. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -4π to 4π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -2 to 2. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -3 to 3. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -4π to 4π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -3 to 3. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -4 to 4. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -4π to 4π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -4 to 4. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -5 to 5. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -4π to 4π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -5 to 5. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -6 to 6. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -4π to 4π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -6 to 6. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -7 to 7. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -4π to 4π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -7 to 7. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -8 to 8. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -4π to 4π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -8 to 8. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -9 to 9. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -4π to 4π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -9 to 9. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -10 to 10. The increments on the x-axis are marked in intervals of ¼π.

Trigonometry Grid With Domain -4π to 4π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -10 to 10.…

The Wilhelma was originally a royal palace, mimicking Moorish architecture. After the second world war, a zoo and botanical gardens. It is Europe's only large combined zoological and botanical garden and is home to over 8,000 animals from over 1,000 different species and countless exotic plants from over 5,000 different species. The zoo is famous for keeping all four kinds of great apes, all in families with offspring, as well as for its aquarium featuring animals and plants from all over the world. The botanical gardens are renowned for containing Europe's biggest magnolia grove. It is also the home of the polar bear Wilbaer, who was born in captivity at the zoo in December of 2007.

Wilhelma

The Wilhelma was originally a royal palace, mimicking Moorish architecture. After the second world war,…

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

Spherical Triangle

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

Spherical Triangle

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

Spherical Triangle

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

An illustration of two polar bears standing on icebergs with large icebergs surrounding them.

Polar Bears on Iceberg

An illustration of two polar bears standing on icebergs with large icebergs surrounding them.

An illustration of a polar bear standing on an iceberg.

Polar Bear

An illustration of a polar bear standing on an iceberg.

A Polar Spiral French curve, or irregular curve, is used to draw engineering diagrams and steam curves, and is plotted by using the polar equation.

Polar Curve French Curves

A Polar Spiral French curve, or irregular curve, is used to draw engineering diagrams and steam curves,…

A graph showing a logarithmic or equiangular spiral. The spiral is created in polar coordinates (r,Θ) based on the natural log function.

Equiangular or Logarithmic Spiral

A graph showing a logarithmic or equiangular spiral. The spiral is created in polar coordinates (r,Θ)…

An Amsler Polar Planimeter instrument used to measure the area of an arbitrary shape. The planimeter traces the shape of the graph with respect to the origin. The wheel at the hinge shows the measurement of the area.

Amsler Polar Planimeter to Find Area of Indicator Diagram

An Amsler Polar Planimeter instrument used to measure the area of an arbitrary shape. The planimeter…