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| author | Charles Blake <cblake@csail.mit.edu> | 2015-02-28 19:21:52 -0500 |
|---|---|---|
| committer | Charles Blake <cblake@csail.mit.edu> | 2015-02-28 19:21:52 -0500 |
| commit | 840f80e45c92b913991158fdb301050d98a986af (patch) | |
| tree | 536600f271e72e1c9f4b203728477a046f8f1a9b | |
| parent | 2df10fc4a60e6c8f7e0b42205dba29988e0a5c06 (diff) | |
| download | Nim-840f80e45c92b913991158fdb301050d98a986af.tar.gz | |
Fix buggy rect(), doc comment, and unit test.
| -rw-r--r-- | lib/pure/complex.nim | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/pure/complex.nim b/lib/pure/complex.nim index c844c1fa2..8577bf7a1 100644 --- a/lib/pure/complex.nim +++ b/lib/pure/complex.nim @@ -365,9 +365,9 @@ proc polar*(z: Complex): tuple[r, phi: float] = result.phi = phase(z) proc rect*(r: float, phi: float): Complex = - ## Returns the complex number with poolar coordinates `r` and `phi`. + ## Returns the complex number with polar coordinates `r` and `phi`. result.re = r * cos(phi) - result.im = sin(phi) + result.im = r * sin(phi) proc `$`*(z: Complex): string = @@ -438,5 +438,6 @@ when isMainModule: assert( arccoth(a) =~ arctanh(1/a) ) assert( phase(a) == 1.1071487177940904 ) - assert( polar(a) =~ (2.23606797749979, 1.1071487177940904) ) + var t = polar(a) + assert( rect(t.r, t.phi) =~ a ) assert( rect(1.0, 2.0) =~ (-0.4161468365471424, 0.9092974268256817) ) |