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Roots of a function: Difference between revisions
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→{{header|Tcl}}: Noted that approximation is inherent
(→Tcl: Added version that uses Newton-Raphson to go much faster, at a cost of needing the functional derivative of the input function) |
m (→{{header|Tcl}}: Noted that approximation is inherent) |
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=={{header|Tcl}}==
This simple brute force iteration marks all results, with a leading "~", as approximate. This version always reports its results as approximate because of the general limits of computation using fixed-width floating-point numbers (i.e., IEEE double-precision floats).
<lang Tcl>proc froots {lambda {start -3} {end 3} {step 0.0001}} {
set res {}
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