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Writing the equation of a line in the form `[1 + 2 t, 2 + 4 t, 3 + 4 t]`?
20180313 17:01:09
I am trying to write the result of the equation of the line passing through points pA, pB. My code
pA = {1, 2, 3};
pB = {3, 6, 7};
u = pB  pA;
pA + u t
{1 + 2 t, 2 + 4 t, 3 + 4 t}
How can I get the result in the form [1 + 2 t, 2 + 4 t, 3 + 4 t]?
StringReplace[TextString[{a, b, c}], {"{" > "[", "}" > "]"}]
[a,b,c]
Even shorter:
pA = {1, 2, 3};
pB = {3, 6, 7};
u = pB  pA;
result = pA + u t
"" @@ result // ToString (* ToString is of course optional *)
[1 + 2 t, 2 + 4 t, 3 + 4 t]

StringReplace[TextString[{a, b, c}], {"{" > "[", "}" > "]"}]
[a,b,c]
20180313 17:14:49 
Even shorter:
pA = {1, 2, 3};
pB = {3, 6, 7};
u = pB  pA;
result = pA + u t
"" @@ result // ToString (* ToString is of course optional *)
[1 + 2 t, 2 + 4 t, 3 + 4 t]
20180313 17:25:26