Romain Rolland (1866-1944) was a French novelist, dramatist, and essayist, an idealist who was deeply involved with pacifism, the fight against fascism, the search for world peace, and the analysis of artistic genius. He was awarded the Nobel Prize for Literature in 1915.
... \pm \sqrt {b^2-4ac}}{2a}
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The term b2 – 4ac is called the discriminant of the quadratic equation, because it discriminates between three ...