Yihe Lu

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    Yihe Lu on Geometric series: sigma notation 3 months ago

    Gave some feedback: Doesn't work

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    Yihe Lu commented on Find the equation of a line through two points - negative gradient 3 months ago

    Numbas Error: Error making HTML in Question 1 Statement: Error in user-defined javascript function plotpoints: math is not defined
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    Yihe Lu commented on Find the equation of a line through two points - zero gradient 3 months ago

    Numbas Error: Error making HTML in Question 1 Statement: Error in user-defined javascript function plotpoints: math is not defined
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    Yihe Lu commented on Rationalising the denominator - surds 3 months, 1 week ago

    Got the following error when hitting Run:
    Numbas Error: Question 1: Definition of variable sqrt is empty.