用Octave计算导数基本公式(11)
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反三角函数求导公式(1)
\( ({\rm arcsin} x )'= \frac{1}{ \sqrt{1-x^2} } \)
程序代码如下
function [text_result, numeric_result] = func28()
pkg load symbolic;
x = sym('x');
question = asin(x);
lim = diff(question, x);
text_result = ["\n", disp(lim)];
numeric_result = eval(lim);
endfunction
计算结果如下
>> [text_result, numeric_result] = func28()
text_result =
1
───────────
________
╱ 2
╲╱ 1 - x
numeric_result = (sym)
1
───────────
________
╱ 2
╲╱ 1 - x