Landscape
Quadratic Bowl
x² + y² · convex · easy
Saddle Point
x² − y² · no minimum
Rosenbrock
(1−x)² + 100(y−x²)² · banana
Himmelblau
(x²+y−11)² + (x+y²−7)²
Rastrigin
20 + Σ[x²−10cos(2πx)]
Optimizer
SGD
Momentum
Adam
RMSProp
Compare all
Learning rate
0.001
0.01
0.1
0.5
Gradient noise
Off
Low
High
Steps / frame
×1
×10
×50
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landscape =
Bowl
optimizer =
SGD
step =
0
loss =
—
|∇f| =
—
α =
0.1