Math With AmarA C A D E M Y

Math With Amar · Guided practice

10,000 ways to practice.
One idea at a time.

Each chapter gives you a distinct mathematical scenario: one question to attempt, a hint, a worked solution, and an animated example you can control.

10,000 questions · 10,000 animated scenarios · 14 study levels

An advanced mathematics workspace with geometric models and research notes

Choose a starting point

Practice at your level.

Grade labels are starting points; school sequences vary. Advanced chapters assume the prerequisites listed on their pages.

Attempt · Explain · Animate

Graduate practice chapters

601–620 of 650 matching chapters · Page 31 of 33

Clear filters
  1. Graduate · Chapter 601

    Contraction estimates · Contraction slope q=-0.3; Constant b=-1.5

    Use n=7 iterations. Find the fixed point, seventh iterate, and exact absolute error from the fixed point. Givens: Contraction slope q=-0.3; Constant b=-1.5.

    Question · Worked solution · Animated example

    Open practice chapter
  2. Graduate · Chapter 602

    Smoothing a weak derivative · Smoothing width ε=0.5; Corner location b=0

    Evaluate at x=0.6. Find the smooth derivative, the sign-function representative of the weak derivative, and the pointwise smoothing error. Givens: Smoothing width ε=0.5; Corner location b=0.

    Question · Worked solution · Animated example

    Open practice chapter
  3. Graduate · Chapter 603

    Coercivity in a finite model · First diagonal entry a=3; Second diagonal entry b=1

    Use θ=6π/5 radians. Find vᵀAv and the sharp lower and upper bounds over all unit directions. Givens: First diagonal entry a=3; Second diagonal entry b=1.

    Question · Worked solution · Animated example

    Open practice chapter
  4. Graduate · Chapter 604

    Critical norm scaling · Final spatial factor λ=4; Lebesgue exponent p=5.5

    Evaluate at the current scale λ=2.8. Find the norm-scaling exponent, the Lᵖ norm ratio, and the spatial volume ratio. Givens: Final spatial factor λ=4; Lebesgue exponent p=5.5.

    Question · Worked solution · Animated example

    Open practice chapter
  5. Graduate · Chapter 605

    Conditional expectation by groups · First group baseline a=-1.5; Second group baseline b=2.5

    Use the completed group estimates at the animation endpoint. Find E[X|G] on both groups, E[X], and the mean squared prediction error. Givens: First group baseline a=-1.5; Second group baseline b=2.5.

    Question · Worked solution · Animated example

    Open practice chapter
  6. Graduate · Chapter 606

    Contraction estimates · Contraction slope q=-0.2; Constant b=-1

    Use n=7 iterations. Find the fixed point, seventh iterate, and exact absolute error from the fixed point. Givens: Contraction slope q=-0.2; Constant b=-1.

    Question · Worked solution · Animated example

    Open practice chapter
  7. Graduate · Chapter 607

    Smoothing a weak derivative · Smoothing width ε=0.55; Corner location b=0.25

    Evaluate at x=0.6. Find the smooth derivative, the sign-function representative of the weak derivative, and the pointwise smoothing error. Givens: Smoothing width ε=0.55; Corner location b=0.25.

    Question · Worked solution · Animated example

    Open practice chapter
  8. Graduate · Chapter 608

    Coercivity in a finite model · First diagonal entry a=0.2; Second diagonal entry b=1.4

    Use θ=6π/5 radians. Find vᵀAv and the sharp lower and upper bounds over all unit directions. Givens: First diagonal entry a=0.2; Second diagonal entry b=1.4.

    Question · Worked solution · Animated example

    Open practice chapter
  9. Graduate · Chapter 609

    Critical norm scaling · Final spatial factor λ=0.25; Lebesgue exponent p=4

    Evaluate at the current scale λ=0.55. Find the norm-scaling exponent, the Lᵖ norm ratio, and the spatial volume ratio. Givens: Final spatial factor λ=0.25; Lebesgue exponent p=4.

    Question · Worked solution · Animated example

    Open practice chapter
  10. Graduate · Chapter 610

    Conditional expectation by groups · First group baseline a=-1; Second group baseline b=3

    Use the completed group estimates at the animation endpoint. Find E[X|G] on both groups, E[X], and the mean squared prediction error. Givens: First group baseline a=-1; Second group baseline b=3.

    Question · Worked solution · Animated example

    Open practice chapter
  11. Graduate · Chapter 611

    Contraction estimates · Contraction slope q=-0.1; Constant b=-0.5

    Use n=7 iterations. Find the fixed point, seventh iterate, and exact absolute error from the fixed point. Givens: Contraction slope q=-0.1; Constant b=-0.5.

    Question · Worked solution · Animated example

    Open practice chapter
  12. Graduate · Chapter 612

    Smoothing a weak derivative · Smoothing width ε=0.6; Corner location b=0.5

    Evaluate at x=0.6. Find the smooth derivative, the sign-function representative of the weak derivative, and the pointwise smoothing error. Givens: Smoothing width ε=0.6; Corner location b=0.5.

    Question · Worked solution · Animated example

    Open practice chapter
  13. Graduate · Chapter 613

    Coercivity in a finite model · First diagonal entry a=0.4; Second diagonal entry b=1.6

    Use θ=6π/5 radians. Find vᵀAv and the sharp lower and upper bounds over all unit directions. Givens: First diagonal entry a=0.4; Second diagonal entry b=1.6.

    Question · Worked solution · Animated example

    Open practice chapter
  14. Graduate · Chapter 614

    Critical norm scaling · Final spatial factor λ=0.5; Lebesgue exponent p=4.5

    Evaluate at the current scale λ=0.7. Find the norm-scaling exponent, the Lᵖ norm ratio, and the spatial volume ratio. Givens: Final spatial factor λ=0.5; Lebesgue exponent p=4.5.

    Question · Worked solution · Animated example

    Open practice chapter
  15. Graduate · Chapter 615

    Conditional expectation by groups · First group baseline a=-0.5; Second group baseline b=-2

    Use the completed group estimates at the animation endpoint. Find E[X|G] on both groups, E[X], and the mean squared prediction error. Givens: First group baseline a=-0.5; Second group baseline b=-2.

    Question · Worked solution · Animated example

    Open practice chapter
  16. Graduate · Chapter 616

    Contraction estimates · Contraction slope q=0; Constant b=0

    Use n=7 iterations. Find the fixed point, seventh iterate, and exact absolute error from the fixed point. Givens: Contraction slope q=0; Constant b=0.

    Question · Worked solution · Animated example

    Open practice chapter
  17. Graduate · Chapter 617

    Smoothing a weak derivative · Smoothing width ε=0.65; Corner location b=0.75

    Evaluate at x=0.6. Find the smooth derivative, the sign-function representative of the weak derivative, and the pointwise smoothing error. Givens: Smoothing width ε=0.65; Corner location b=0.75.

    Question · Worked solution · Animated example

    Open practice chapter
  18. Graduate · Chapter 618

    Coercivity in a finite model · First diagonal entry a=0.6; Second diagonal entry b=1.8

    Use θ=6π/5 radians. Find vᵀAv and the sharp lower and upper bounds over all unit directions. Givens: First diagonal entry a=0.6; Second diagonal entry b=1.8.

    Question · Worked solution · Animated example

    Open practice chapter
  19. Graduate · Chapter 619

    Critical norm scaling · Final spatial factor λ=0.75; Lebesgue exponent p=5

    Evaluate at the current scale λ=0.85. Find the norm-scaling exponent, the Lᵖ norm ratio, and the spatial volume ratio. Givens: Final spatial factor λ=0.75; Lebesgue exponent p=5.

    Question · Worked solution · Animated example

    Open practice chapter
  20. Graduate · Chapter 620

    Conditional expectation by groups · First group baseline a=0; Second group baseline b=-1.5

    Use the completed group estimates at the animation endpoint. Find E[X|G] on both groups, E[X], and the mean squared prediction error. Givens: First group baseline a=0; Second group baseline b=-1.5.

    Question · Worked solution · Animated example

    Open practice chapter
10,000 Guided Math Practice Chapters | Math With Amar