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document in LIBRARY, q_to_c() that was previously added

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Added q_to_c(NUMBER *q) to make it easier to convert a NUMBER
into an allocated COMPLEX value.
This commit is contained in:
Landon Curt Noll
2023-10-03 01:59:00 -07:00
parent 2c4abcd2b7
commit 68e1914ee7
2 changed files with 10 additions and 0 deletions
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CHANGES
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@@ -148,6 +148,9 @@ The following are the changes from calc version 2.14.3.5 to date:
a COMPLEX value that is real (imag part is 0) into a NUMBER and a COMPLEX value that is real (imag part is 0) into a NUMBER and
optionally free the COMPLEX value. The func.c code now uses c_to_q(). optionally free the COMPLEX value. The func.c code now uses c_to_q().
Added q_to_c(NUMBER *q) to make it easier to convert a NUMBER
into an allocated COMPLEX value.
Added new vercos(x, [,eps]) for versed cosine and covercos(x, [,eps]) Added new vercos(x, [,eps]) for versed cosine and covercos(x, [,eps])
for inverse versed cosine. for inverse versed cosine.

7
LIBRARY
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@@ -653,6 +653,13 @@ The 2nd argument to c_to_q() determines if the complex argument should be freed
or not. Pass a false value as the 2nd arg if you wish to continue to use the or not. Pass a false value as the 2nd arg if you wish to continue to use the
COMPLEX value. COMPLEX value.
To convert a NUMBER into a COMPLEX value, use:
COMPLEX *c;
NUMBER *q;
c = q_to_c(q);
There are three predefined values for complex numbers. You should clink There are three predefined values for complex numbers. You should clink
them when you want to use them. They are _czero_, _cone_, and _conei_. them when you want to use them. They are _czero_, _cone_, and _conei_.
These have the values 0, 1, and i. These have the values 0, 1, and i.