HP 35s HP 35s scientific calculator - User Guide - Page 355
ÕÕÕ, variable, parenthesis
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Name Σx2 Σxy Σy Σy2 σx σy ∫ FN d variable ( ) [ ] θ Keys and Description Page Returns the sum of squares of x- values. 12-11 1 12-11 1 () Returns the sum of products of x-and y-values. Returns the sum of y-values. 12-11 1 12-11 1 Returns the sum of squares of y- values. Returns population standard deviation of x-values: 12-7 1 ∑ (xi − x )2 ÷ n Returns population standard deviation of y-values: 12-7 1 ∑ (yi − y )2 ÷ n variable 8-2 Integrates the displayed equation or the program selected by FN=, using lower limit of the variable of integration in the Y-register and 15-7 upper limit of the variable of integration in the X-register. 4parenthesis. press Õ to leave 6-6 1 the parenthesis for further calculation. 3: A vector symbol for 10-1 1 performing vector operations ?: A complex number symbol 9-1 1 for performing complex number operations Operation Index G-3