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(* Orpie -- a stack-based RPN calculator for the console
* Copyright (C) 2003-2004 Paul Pelzl
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Please send bug reports, patches, etc. to Paul Pelzl at
* <pelzlpj@eecs.umich.edu>.
*)
open Rpc_stack
open Gsl_assist
open Big_int
let sub (stack : rpc_stack) (evaln : int -> unit) =
evaln 2;
let gen_el2 = stack#pop () in
let gen_el1 = stack#pop () in
match gen_el1 with
|RpcInt el1 -> (
match gen_el2 with
|RpcInt el2 ->
stack#push (RpcInt (sub_big_int el1 el2))
|RpcFloatUnit el2 ->
if has_units el2 then begin
stack#push gen_el1;
stack#push gen_el2;
raise_invalid "inconsistent units"
end else
stack#push (RpcFloatUnit (funit_of_float
((float_of_big_int el1) -. el2.Units.coeff.Complex.re)))
|RpcComplexUnit el2 ->
if has_units el2 then begin
stack#push gen_el1;
stack#push gen_el2;
raise_invalid "inconsistent units"
end else
let c_el1 = cmpx_of_int el1 in
stack#push (RpcComplexUnit (cunit_of_cpx
(Complex.sub c_el1 el2.Units.coeff)))
|_ ->
(* if the elements are incompatible, we have to
put them back on the stack *)
(stack#push gen_el1;
stack#push gen_el2;
raise (Invalid_argument "incompatible types for subtraction"))
)
|RpcFloatUnit el1 -> (
match gen_el2 with
|RpcInt el2 ->
if has_units el1 then begin
stack#push gen_el1;
stack#push gen_el2;
raise_invalid "inconsistent units"
end else
stack#push (RpcFloatUnit (funit_of_float
(el1.Units.coeff.Complex.re -. float_of_big_int el2)))
|RpcFloatUnit el2 ->
begin try
let conv = Units.conversion_factor_unitary el1 el2 in
let new_el = {
Units.coeff = Complex.sub conv el2.Units.coeff;
Units.factors = el2.Units.factors
} in
stack#push (RpcFloatUnit new_el)
with Units.Units_error s ->
stack#push gen_el1;
stack#push gen_el2;
raise_invalid s
end
|RpcComplexUnit el2 ->
begin try
let conv = Units.conversion_factor_unitary el1 el2 in
let new_el = {
Units.coeff = Complex.sub conv el2.Units.coeff;
Units.factors = el2.Units.factors
} in
stack#push (RpcComplexUnit new_el)
with Units.Units_error s ->
stack#push gen_el1;
stack#push gen_el2;
raise_invalid s
end
|_ ->
(* if the elements are incompatible, we have to
put them back on the stack *)
(stack#push gen_el1;
stack#push gen_el2;
raise (Invalid_argument "incompatible types for subtraction"))
)
|RpcComplexUnit el1 -> (
match gen_el2 with
|RpcInt el2 ->
if has_units el1 then begin
stack#push gen_el1;
stack#push gen_el2;
raise_invalid "inconsistent units"
end else
let c_el2 = cmpx_of_int el2 in
stack#push (RpcComplexUnit (cunit_of_cpx
(Complex.sub el1.Units.coeff c_el2)))
|RpcFloatUnit el2 | RpcComplexUnit el2 ->
begin try
let conv = Units.conversion_factor_unitary el1 el2 in
let new_el = {
Units.coeff = Complex.sub conv el2.Units.coeff;
Units.factors = el2.Units.factors
} in
stack#push (RpcComplexUnit new_el)
with Units.Units_error s ->
stack#push gen_el1;
stack#push gen_el2;
raise_invalid s
end
|_ ->
(* if the elements are incompatible, we have to
put them back on the stack *)
(stack#push gen_el1;
stack#push gen_el2;
raise (Invalid_argument "incompatible types for subtraction"))
)
|RpcFloatMatrixUnit (el1, u1) -> (
match gen_el2 with
|RpcFloatMatrixUnit (el2, u2) ->
let dim1 = (Gsl_matrix.dims el1) and
dim2 = (Gsl_matrix.dims el2) in
if dim1 = dim2 then
try
let conv = Units.conversion_factor_unitary u1 u2 in
let result = Gsl_matrix.copy el1 in
Gsl_matrix.scale result conv.Complex.re;
Gsl_matrix.sub result el2;
stack#push (RpcFloatMatrixUnit (result, u2))
with Units.Units_error s ->
stack#push gen_el1;
stack#push gen_el2;
raise_invalid s
else
(stack#push gen_el1;
stack#push gen_el2;
raise (Invalid_argument "incompatible matrix dimensions for subtraction"))
|RpcComplexMatrixUnit (el2, u2) ->
let dim1 = (Gsl_matrix.dims el1) and
dim2 = (Gsl_matrix_complex.dims el2) in
if dim1 = dim2 then
try
let conv = Units.conversion_factor_unitary u1 u2 in
let c_el1 = cmat_of_fmat el1 in
Gsl_matrix_complex.scale c_el1 conv;
Gsl_matrix_complex.sub c_el1 el2;
stack#push (RpcComplexMatrixUnit (c_el1, u2))
with Units.Units_error s ->
stack#push gen_el1;
stack#push gen_el2;
raise_invalid s
else
(stack#push gen_el1;
stack#push gen_el2;
raise (Invalid_argument "incompatible matrix dimensions for subtraction"))
|_ ->
(* if the elements are incompatible, we have to
put them back on the stack *)
(stack#push gen_el1;
stack#push gen_el2;
raise (Invalid_argument "incompatible types for subtraction"))
)
|RpcComplexMatrixUnit (el1, u1) -> (
match gen_el2 with
|RpcFloatMatrixUnit (el2, u2) ->
let dim1 = (Gsl_matrix_complex.dims el1) and
dim2 = (Gsl_matrix.dims el2) in
if dim1 = dim2 then
try
let conv = Units.conversion_factor_unitary u1 u2 in
let c_el2 = cmat_of_fmat el2 in
let result = Gsl_matrix_complex.copy el1 in
Gsl_matrix_complex.scale result conv;
Gsl_matrix_complex.sub result c_el2;
stack#push (RpcComplexMatrixUnit (result, u2))
with Units.Units_error s ->
stack#push gen_el1;
stack#push gen_el2;
raise_invalid s
else
(stack#push gen_el1;
stack#push gen_el2;
raise (Invalid_argument "incompatible matrix dimensions for subtraction"))
|RpcComplexMatrixUnit (el2, u2) ->
let dim1 = (Gsl_matrix_complex.dims el1) and
dim2 = (Gsl_matrix_complex.dims el2) in
if dim1 = dim2 then
try
let conv = Units.conversion_factor_unitary u1 u2 in
let result = Gsl_matrix_complex.copy el1 in
Gsl_matrix_complex.scale result conv;
Gsl_matrix_complex.sub result el2;
stack#push (RpcComplexMatrixUnit (result, u2))
with Units.Units_error s ->
stack#push gen_el1;
stack#push gen_el2;
raise_invalid s
else
(stack#push gen_el1;
stack#push gen_el2;
raise (Invalid_argument "incompatible matrix dimensions for subtraction"))
|_ ->
(* if the elements are incompatible, we have to
put them back on the stack *)
(stack#push gen_el1;
stack#push gen_el2;
raise (Invalid_argument "incompatible types for subtraction"))
)
|_ ->
(stack#push gen_el1;
stack#push gen_el2;
raise (Invalid_argument "incompatible types for subtraction"))
(* arch-tag: DO_NOT_CHANGE_f9044e6f-03c7-465a-b8ab-87cf65a0bc37 *)
|
