You can use the Phase Plane and Slope Field apps to qualitatively analyze ordinary differential equations (ODEs). Phase Plane app: Analyze two-dimensional autonomous ODE systems. Slope Field app: ...

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Distraught pupils have likened an A-level maths paper to a 'war crime' - with more than 19,000 people signing a petition demanding a review due to its difficulty. Pearson Edexcel's Maths 1 paper, sat ...