3 files changed, 48 insertions, 1 deletions
diff --git a/man/zmodmul.3 b/man/zmodmul.3
index e27f37c..cbee629 100644
--- a/man/zmodmul.3
+++ b/man/zmodmul.3
@@ -1,6 +1,6 @@
 .TH ZMODMUL 3 libzahl
 .SH NAME
-zmodmul - Calculate the modular product of two big integer
+zmodmul - Calculate a modular product of two big integer
 .SH SYNOPSIS
 .nf
 #include <zahl.h>
@@ -34,6 +34,7 @@ It is possible to calculate the modular product
 with a faster algorithm than calculating the
 product and than the modulus of that product.
 .SH SEE ALSO
+.BR zmodsqr (3),
 .BR zmodpow (3),
 .BR zstr (3),
 .BR zadd (3),
diff --git a/man/zmodpow.3 b/man/zmodpow.3
index 13b6082..f59dc28 100644
--- a/man/zmodpow.3
+++ b/man/zmodpow.3
@@ -34,6 +34,7 @@ It is possible to calculate the modular power
 with a faster algorithm than calculating the
 power and than the modulus of that power.
 .SH SEE ALSO
+.BR zmodsqr (3),
 .BR zmodmul (3),
 .BR zsqr (3),
 .BR zstr (3),
diff --git a/man/zmodsqr.3 b/man/zmodsqr.3
new file mode 100644
index 0000000..c54cc01
--- /dev/null
+++ b/man/zmodsqr.3
@@ -0,0 +1,45 @@
+.TH ZMODSQR 3 libzahl
+.SH NAME
+zsqr - Calculate a modular square of a big integer
+.SH SYNOPSIS
+.nf
+#include <zahl.h>
+
+void zmodsqr(z_t \fIsquare\fP, z_t \fIinteger\fP, z_t \fImodulator\fP);
+.fi
+.SH DESCRIPTION
+.B zmodsqr
+calculates the square of an
+.IR integer ,
+modulus a
+.IR modulator ,
+and stores the result in
+.IR square .
+That is,
+.I square
+gets
+.IR integer ².
+Mod
+.IR modulator .
+.P
+It is safe to call
+.B zmodsqr
+with non-unique parameters.
+.SH RATIONALE
+See rationle for
+.BR zmodmul (3),
+and
+.BR zsqr (3).
+.SH SEE ALSO
+.BR zmodmul (3),
+.BR zmodpow (3),
+.BR zsqr (3),
+.BR zstr (3),
+.BR zadd (3),
+.BR zsub (3),
+.BR zmul (3),
+.BR zdiv (3),
+.BR zmod (3),
+.BR zneg (3),
+.BR zabs (3),
+.BR zpow (3)