Trig Function Explorer
Drag the terminal side · spin multiple revolutions · plot all 6 functions
0°
0 rad · 0 rev
0 revolution(s)
Display Units
DEG
RAD
Amplitude (radius)
1.00
Functions
sin
cos
tan
csc
sec
cot
All On
All Off
sin + cos
Reciprocals
Animate
▶ Play
↺ Reset
Speed
✋ Try it!
Drag anywhere on the circle to rotate the terminal side. Keep dragging past 360° to add revolutions — negative direction works too!
Current Values
sin θ
—
cos θ
—
tan θ
—
csc θ
—
sec θ
—
cot θ
—
Point on Circle
x = r·cos θ
—
y = r·sin θ
—
Graph Window
Showing:
1 period
x-range:
0 → 2π
Marker:
0
Key Identities
csc θ = 1 / sin θ
sec θ = 1 / cos θ
cot θ = cos θ / sin θ
sin²θ + cos²θ = 1