# Eugene Kritchevski

• ### cal3 directional derivative

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Eugene Kritchevski

• ### cal3 level curve f(x,y) up to quadratic

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Eugene Kritchevski

• ### cal3 cross sections of z=f(x,y) with x fixed

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Eugene Kritchevski

• ### cal3 cross sections of z=f(x,y) with y fixed

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Eugene Kritchevski

• ### cal3 cross sections of z=f(x,y)

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Eugene Kritchevski

• ### cal3 level curve

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Eugene Kritchevski

• ### CET level curve

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Eugene Kritchevski

• ### Sequences - webplot

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Eugene Kritchevski

• ### Sequence plot

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Eugene Kritchevski

• ### Archimedes quadrature of the parabola

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Eugene Kritchevski

• ### Subdividing

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Eugene Kritchevski

• ### NYB partial fractions

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Eugene Kritchevski

• ### Continuous or not at 2?

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Eugene Kritchevski

• ### Signed area and Riemann sums

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Eugene Kritchevski

• ### Unit circle

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Eugene Kritchevski

• ### Limits are NOT the same as the value of the function

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Eugene Kritchevski

• ### Pascal's triangle up to 8

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Eugene Kritchevski

• ### Limit ignores the value of a function at a point

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Eugene Kritchevski

• ### Power series solution to (1+2x^2)y''(x)+6xy'(x)+2y(x)=0

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Eugene Kritchevski

• ### Complex number multiplication

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Eugene Kritchevski

• ### Pendulum - interactive phase portrait

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Eugene Kritchevski

• ### DE: y'(x)+my(x)=b

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Eugene Kritchevski

• ### (DE) y'=-2x*y

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Eugene Kritchevski

• ### Tangent line to a level curve

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Eugene Kritchevski